chore: setup release-please action

.github/workflows/release-please.yml

@@ -0,0 +1,43 @@
+on:
+  push:
+    branches:
+      - master
+      - 'releases/**'
+
+permissions:
+  contents: write
+  pull-requests: write
+
+name: release-please
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: googleapis/release-please-action@v4
+        id: release
+        with:
+          # this assumes that you have created a personal access token
+          # (PAT) and configured it as a GitHub action secret named
+          # `MY_RELEASE_PLEASE_TOKEN` (this secret name is not important).
+          token: ${{ secrets.MY_RELEASE_PLEASE_TOKEN }}
+          release-type: python
+          # The short ref name of the branch or tag that triggered
+          #  the workflow run. For example, `main` or `1.x`
+          target-branch: ${{ github.ref_name }}
+
+      - uses: actions/checkout@v4
+      - name: tag major and minor versions
+        if: ${{ steps.release.outputs.release_created }}
+        run: |
+          git config user.name github-actions[bot]
+          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
+          git remote add gh-token "https://${{ secrets.GITHUB_TOKEN }}@github.com/googleapis/release-please-action.git"
+          git tag -d v${{ steps.release.outputs.major }} || true
+          git tag -d v${{ steps.release.outputs.major }}.${{ steps.release.outputs.minor }} || true
+          git push origin :v${{ steps.release.outputs.major }} || true
+          git push origin :v${{ steps.release.outputs.major }}.${{ steps.release.outputs.minor }} || true
+          git tag -a v${{ steps.release.outputs.major }} -m "Release v${{ steps.release.outputs.major }}"
+          git tag -a v${{ steps.release.outputs.major }}.${{ steps.release.outputs.minor }} -m "Release v${{ steps.release.outputs.major }}.${{ steps.release.outputs.minor }}"
+          git push origin v${{ steps.release.outputs.major }}
+          git push origin v${{ steps.release.outputs.major }}.${{ steps.release.outputs.minor }}

.release-please-manifest.json

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+{
+  ".": "1.3.0"
+}
+

release-please-config.json

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+{
+    "packages": {
+        ".": {
+        "changelog-path": "CHANGELOG.md",
+        "release-type": "python",
+        "bump-minor-pre-major": false,
+        "bump-patch-for-minor-pre-major": false,
+        "draft": false,
+        "prerelease": false
+        }
+    },
+    "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"
+}