Update dependency @angular/compiler to v20

Author: renovate[bot]

libraries/angular/package.json

@@ -24,7 +24,7 @@
   },
   "dependencies": {
     "@angular/common": "20.1.6",
-    "@angular/compiler": "16.2.10",
+    "@angular/compiler": "20.1.6",
     "@angular/core": "20.1.6",
     "@angular/forms": "20.1.6",
     "@angular/platform-browser": "20.1.6",