[Snyk] Security upgrade level from 2.1.2 to 5.0.0

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • package.json
  • package-lock.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	696/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 7.5	Regular Expression Denial of Service (ReDoS) SNYK-JS-ANSIREGEX-1583908	Yes	Proof of Concept

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: level

The new version differs by 51 commits.

• 3821beb 5.0.0
• 40ed10f Prepare v5.0.0 (Release/v0.1.19 keppel/lotion#144)
• 4fe70af chore(package): update nyc to version 13.2.0 (small fixes keppel/lotion#143)
• 5d2d42c Add note about Rollup to README.md (Tx handler gets called twice per every incoming tx keppel/lotion#139)
• 2413e7c Apply common project tweaks (round 2) (fees handling and/or prevent spam keppel/lotion#138)
• 522f43f Tweak Open Collective things (Lotion's version should be bumped up keppel/lotion#137)
• e6a99d2 Apply common project tweaks (Mempool state should persist between CheckTx calls keppel/lotion#136)
• 7b5c340 Add .travis.yml and appveyor.yml to .npmignore
• 2dcb31d 5.0.0-0
• eb36245 Prepare 5.0.0-0 (createEmptyBlocks: false has no effect on the node start keppel/lotion#134)
• 24e96c2 Integrate level-js for browser support (Upgrade to [email protected] keppel/lotion#135)
• 78e4ee2 Upgrade leveldown from ^4.0.0 to ^5.0.0-1 (next) (Added block info to chainInfo object keppel/lotion#133)
• fc3544e fix(package): update level-packager to version 5.0.0 (unable to distinguish checkTx() or deliverTx() ABCI calls in useTx() handler keppel/lotion#131)
• 036a857 Remove support for node 6 for upcoming release of leveldown (tendermint v0.19.5 keppel/lotion#129)
• f032b6c const -> var in README
• dd7bf89 Merge pull request Use Tendermint transaction tagging keppel/lotion#118 from Level/greenkeeper/standard-12.0.0
• 6260d71 chore(package): update standard to version 12.0.0
• 1526ffc Add nyc and coveralls (genesis.json not being created, throwing error keppel/lotion#115)
• 2bf1d3f Remove node 9
• f37252d Remove contributors from package.json
• b740490 Merge pull request Async keppel/lotion#113 from Level/greenkeeper/level-packager-4.0.0
• 019dc40 Update tests from level-packager
• 95b981d fix(package): update level-packager to version 4.0.0
• 0b9c8ad Tweak copyright years for less maintenance

See the full diff

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