build: update cross-repo angular dependencies to v20.2.9

See associated pull request for more information.

Author: angular-robot

package.json

@@ -47,14 +47,14 @@
   "homepage": "https://github.com/angular/angular-cli",
   "devDependencies": {
     "@angular/animations": "20.3.4",
-    "@angular/cdk": "20.2.8",
+    "@angular/cdk": "20.2.9",
     "@angular/common": "20.3.4",
     "@angular/compiler": "20.3.4",
     "@angular/compiler-cli": "20.3.4",
     "@angular/core": "20.3.4",
     "@angular/forms": "20.3.4",
     "@angular/localize": "20.3.4",
-    "@angular/material": "20.2.8",
+    "@angular/material": "20.2.9",
     "@angular/ng-dev": "https://github.com/angular/dev-infra-private-ng-dev-builds.git#2feb4d5082bd3322d64282894b81809c1cf93ca9",
     "@angular/platform-browser": "20.3.4",
     "@angular/platform-server": "20.3.4",