Update dependency @babel/plugin-proposal-decorators to v7.12.12

This MR contains the following updates:

Package	Type	Update	Change
@babel/plugin-proposal-decorators	devDependencies	patch	7.12.1 -> 7.12.12

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Release Notes

babel/babel

v7.12.12

Compare Source

🐛 Bug Fix

• babel-plugin-transform-block-scoping, babel-traverse
  • #​12530 skip discriminant when renamer starts from SwitchStatement. Closes #​12148 (@​Zzzen)
• babel-types
  • #​12521 Restore @babel/types support for old TS versions (@​nicolo-ribaudo)
• babel-plugin-transform-block-scoping
  • #​12512 Fix annex B block function hoisting semantics (@​nicolo-ribaudo)

🏠 Internal

• babel-polyfill
  • #​12541 Archive @babel/polyfill (@​nicolo-ribaudo)
• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx
  • #​12524 refactor: Move react-jsx-development implementation into react-jsx (@​nicolo-ribaudo)
• babel-helper-fixtures, babel-helper-transform-fixture-test-runner, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-decorators
  • #​12130 Remove babel polyfill from fixture test runner (@​JLHwung)
• Other
  • #​12527 Update release-tool and define implicit deps for @babel/runtime (@​nicolo-ribaudo)
  • #​12011 Enable PnP linker on CI build job (@​JLHwung)

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