Bump @angular/common and @angular/elements

Bumps [@angular/common](https://github.com/angular/angular/tree/HEAD/packages/common) and [@angular/elements](https://github.com/angular/angular/tree/HEAD/packages/elements). These dependencies needed to be updated together.

Updates `@angular/common` from 12.2.17 to 21.0.1
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/21.0.1/packages/common)

Updates `@angular/elements` from 12.2.17 to 21.0.1
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/21.0.1/packages/elements)

---
updated-dependencies:
- dependency-name: "@angular/common"
  dependency-version: 21.0.1
  dependency-type: direct:development
- dependency-name: "@angular/elements"
  dependency-version: 21.0.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

package-lock.json

@@ -47,11 +47,11 @@
   "devDependencies": {
     "@angular-devkit/build-angular": "~12.2.18",
     "@angular/cli": "~12.2.0",
-    "@angular/common": "~12.2.0",
+    "@angular/common": "~21.0.1",
     "@angular/compiler": "^12.2.17",
     "@angular/compiler-cli": "~12.2.0",
     "@angular/core": "~12.2.0",
-    "@angular/elements": "~12.2.0",
+    "@angular/elements": "~21.0.1",
     "@types/estree": "^1.0.0",
     "@types/node": "^12.11.1",
     "ng-packagr": "^12.1.1",