Update dependency @angular/compiler-cli to v21

Author: renovate[bot]

package.json

@@ -47,7 +47,7 @@
   "devDependencies": {
     "@angular/common": "19.1.7",
     "@angular/compiler": "19.1.7",
-    "@angular/compiler-cli": "19.1.7",
+    "@angular/compiler-cli": "21.0.6",
     "@angular/core": "13.3.0",
     "@rollup/plugin-babel": "6.0.4",
     "concurrently": "9.2.0",