chore(deps): update dependency @angular/compiler to v20.3.15 [security]

Author: renovate[bot]

package.json

@@ -67,7 +67,7 @@
     "@angular/animations": "20.3.10",
     "@angular/build": "20.3.9",
     "@angular/common": "20.3.10",
-    "@angular/compiler": "20.3.10",
+    "@angular/compiler": "20.3.15",
     "@angular/compiler-cli": "20.3.10",
     "@angular/core": "20.3.10",
     "@angular/forms": "20.3.10",