Bump @babel/plugin-proposal-decorators from 7.13.15 to 7.20.2

Bumps [@babel/plugin-proposal-decorators](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-proposal-decorators) from 7.13.15 to 7.20.2.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.20.2/packages/babel-plugin-proposal-decorators)

---
updated-dependencies:
- dependency-name: "@babel/plugin-proposal-decorators"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -60,7 +60,7 @@
   "private": true,
   "dependencies": {
     "@babel/core": "^7.14.3",
-    "@babel/plugin-proposal-decorators": "^7.14.2",
+    "@babel/plugin-proposal-decorators": "^7.20.2",
     "@babel/plugin-transform-react-inline-elements": "^7.12.13",
     "@babel/plugin-transform-runtime": "^7.14.3",
     "@babel/preset-env": "^7.14.4",