chore(ci): set up release-please

[diegomarquezp]

Fixes #1545 ☕

Config structure borrowed from https://github.com/googleapis/sdk-platform-java + docs on bootstrapping config

Proof generated PR (updates readmes mentioned in parent issue). PR manually generated via release-please release-pr --token 🚀 --repo-url=https://github.com/googleapis/google-auth-library-java --target-branch setup-release-please

Proof that the config is valid (same command in parent issue used to fail):

diegomarquezp@diegomarquezp1:~/google/google-auth-library-java$ release-please debug-config --debug --repo-url=https://github.com/googleapis/google-auth-library-java --dry-run --target-branch setup-release-please
> Fetching release-please-config.json from branch setup-release-please
> Fetching .release-please-manifest.json from branch setup-release-please
Manifest {
  repository: {
    owner: 'googleapis',
    repo: 'google-auth-library-java',
    defaultBranch: 'main'
  },
  github: GitHub {
    getCommitFiles: [AsyncFunction (anonymous)],
    graphqlRequest: [AsyncFunction (anonymous)],
    findFilesByFilenameAndRef: [AsyncFunction (anonymous)],
    findFilesByGlobAndRef: [AsyncFunction (anonymous)],
    createPullRequest: [AsyncFunction (anonymous)],
    getPullRequest: [AsyncFunction (anonymous)],
    updatePullRequest: [AsyncFunction (anonymous)],
    findFilesByExtensionAndRef: [AsyncFunction (anonymous)],
    createRelease: [AsyncFunction (anonymous)],
    commentOnIssue: [AsyncFunction (anonymous)],
    removeIssueLabels: [AsyncFunction (anonymous)],
    addIssueLabels: [AsyncFunction (anonymous)],
    repository: {
      owner: 'googleapis',
      repo: 'google-auth-library-java',
      defaultBranch: 'main'
    },
    octokit: OctokitWithDefaults {
      request: [Function],
      graphql: [Function],
      log: [Object],
      hook: [Function],
      auth: [AsyncFunction (anonymous)],
      actions: [Object],
      activity: [Object],
      apps: [Object],
      billing: [Object],
      checks: [Object],
      codeScanning: [Object],
      codesOfConduct: [Object],
      codespaces: [Object],
      dependabot: [Object],
      dependencyGraph: [Object],
      emojis: [Object],
      gists: [Object],
      git: [Object],
      gitignore: [Object],
      interactions: [Object],
      issues: [Object],
      licenses: [Object],
      markdown: [Object],
      meta: [Object],
      migrations: [Object],
      orgs: [Object],
      packages: [Object],
      projects: [Object],
      pulls: [Object],
      rateLimit: [Object],
      reactions: [Object],
      repos: [Object],
      search: [Object],
      secretScanning: [Object],
      securityAdvisories: [Object],
      teams: [Object],
      users: [Object],
      rest: [Object],
      paginate: [Function]
    },
    request: [Function: newApi] {
      endpoint: [Function],
      defaults: [Function: bound withDefaults]
    },
    graphql: [Function: newApi] {
      defaults: [Function: bound withDefaults],
      endpoint: [Function]
    },
    fileCache: RepositoryFileCache {
      octokit: [OctokitWithDefaults],
      repository: [Object],
      cache: [Map]
    },
    logger: CheckpointLogger {
      error: [Function (anonymous)],
      warn: [Function (anonymous)],
      info: [Function (anonymous)],
      debug: [Function (anonymous)],
      trace: [Function (anonymous)],
      includeDebug: true,
      includeTrace: false
    }
  },
  targetBranch: 'setup-release-please',
  repositoryConfig: {
    '.': {
      releaseType: 'java-yoshi',
      bumpMinorPreMajor: false,
      bumpPatchForMinorPreMajor: false,
      prereleaseType: undefined,
      versioning: undefined,
      changelogSections: undefined,
      changelogPath: 'CHANGELOG.md',
      changelogHost: undefined,
      changelogType: undefined,
      releaseAs: undefined,
      skipGithubRelease: undefined,
      draft: false,
      draftPullRequest: undefined,
      prerelease: false,
      component: undefined,
      packageName: undefined,
      versionFile: undefined,
      extraFiles: undefined,
      includeComponentInTag: false,
      includeVInTag: undefined,
      tagSeparator: undefined,
      pullRequestTitlePattern: undefined,
      pullRequestHeader: undefined,
      pullRequestFooter: undefined,
      componentNoSpace: undefined,
      separatePullRequests: false,
      skipSnapshot: undefined,
      initialVersion: undefined,
      extraLabels: undefined,
      excludePaths: undefined
    }
  },
  releasedVersions: {
    '.': Version {
      major: 1,
      minor: 30,
      patch: 1,
      preRelease: undefined,
      build: undefined
    }
  },
  manifestPath: '.release-please-manifest.json',
  separatePullRequests: false,
  alwaysUpdate: false,
  fork: false,
  signoffUser: undefined,
  releaseLabels: [ 'autorelease: tagged' ],
  labels: [ 'autorelease: pending' ],
  skipLabeling: false,
  sequentialCalls: false,
  snapshotLabels: [ 'autorelease: snapshot' ],
  bootstrapSha: undefined,
  lastReleaseSha: undefined,
  draft: undefined,
  draftPullRequest: undefined,
  groupPullRequestTitlePattern: 'chore(${branch}): release ${version}',
  releaseSearchDepth: 400,
  commitSearchDepth: 500,
  logger: CheckpointLogger {
    error: [Function (anonymous)],
    warn: [Function (anonymous)],
    info: [Function (anonymous)],
    debug: [Function (anonymous)],
    trace: [Function (anonymous)],
    includeDebug: true,
    includeTrace: false
  },
  plugins: [],
  pullRequestOverflowHandler: FilePullRequestOverflowHandler {
    github: GitHub {
      getCommitFiles: [AsyncFunction (anonymous)],
      graphqlRequest: [AsyncFunction (anonymous)],
      findFilesByFilenameAndRef: [AsyncFunction (anonymous)],
      findFilesByGlobAndRef: [AsyncFunction (anonymous)],
      createPullRequest: [AsyncFunction (anonymous)],
      getPullRequest: [AsyncFunction (anonymous)],
      updatePullRequest: [AsyncFunction (anonymous)],
      findFilesByExtensionAndRef: [AsyncFunction (anonymous)],
      createRelease: [AsyncFunction (anonymous)],
      commentOnIssue: [AsyncFunction (anonymous)],
      removeIssueLabels: [AsyncFunction (anonymous)],
      addIssueLabels: [AsyncFunction (anonymous)],
      repository: [Object],
      octokit: [OctokitWithDefaults],
      request: [Function],
      graphql: [Function],
      fileCache: [RepositoryFileCache],
      logger: [CheckpointLogger]
    },
    logger: CheckpointLogger {
      error: [Function (anonymous)],
      warn: [Function (anonymous)],
      info: [Function (anonymous)],
      debug: [Function (anonymous)],
      trace: [Function (anonymous)],
      includeDebug: true,
      includeTrace: false
    }
  }
}
diegomarquezp@diegomarquezp1:~/google/google-auth-library-java$ echo $?
0

Follow ups

• double check that the main release PR updates the readmes once this one is merged

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[zhumin8]

Thanks Diego for fixing this!
super nit: Could you update the link to "docs on bootstrapping config" in the description? It's pointing to sdk-platform-java