build(deps-dev): bump @babel/plugin-proposal-decorators (#9)

Bumps [@babel/plugin-proposal-decorators](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-proposal-decorators) from 7.8.3 to 7.10.1.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.10.1/packages/babel-plugin-proposal-decorators)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -37,7 +37,7 @@
     "@babel/cli": "^7.8.4",
     "@babel/core": "^7.9.0",
     "@babel/plugin-proposal-class-properties": "^7.8.3",
-    "@babel/plugin-proposal-decorators": "^7.8.3",
+    "@babel/plugin-proposal-decorators": "^7.10.1",
     "@babel/plugin-proposal-nullish-coalescing-operator": "^7.8.3",
     "@babel/plugin-proposal-numeric-separator": "^7.8.3",
     "@babel/plugin-proposal-object-rest-spread": "^7.9.5",