Bump @angular/platform-browser from 13.2.6 to 20.3.6

Bumps [@angular/platform-browser](https://github.com/angular/angular/tree/HEAD/packages/platform-browser) from 13.2.6 to 20.3.6.
- [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/20.3.6/packages/platform-browser)

---
updated-dependencies:
- dependency-name: "@angular/platform-browser"
  dependency-version: 20.3.6
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -12,7 +12,7 @@
     "@angular/core": "13.2.6",
     "@angular/forms": "13.2.6",
     "@angular/localize": "19.2.1",
-    "@angular/platform-browser": "13.2.6",
+    "@angular/platform-browser": "20.3.6",
     "@angular/platform-browser-dynamic": "19.1.6",
     "@angular/router": "13.2.6",
     "angular2-materialize": "15.1.10",