Bump @angular/platform-browser from 12.2.0 to 12.2.1 (#742)

Bumps [@angular/platform-browser](https://github.com/angular/angular/tree/HEAD/packages/platform-browser) from 12.2.0 to 12.2.1.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/master/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/12.2.1/packages/platform-browser)

---
updated-dependencies:
- dependency-name: "@angular/platform-browser"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

package-lock.json

@@ -18,7 +18,7 @@
     "@angular/common": "^12.2.1",
     "@angular/compiler": "^12.2.1",
     "@angular/core": "^12.2.0",
-    "@angular/platform-browser": "^12.2.0",
+    "@angular/platform-browser": "^12.2.1",
     "@angular/platform-browser-dynamic": "^12.2.1",
     "core-js": "^3.16.1",
     "rxjs": "^7.3.0",