Update dependency @angular/language-service to v12

Author: WhiteSource for GitHub.com

package-lock.json

@@ -32,7 +32,7 @@
     "@angular-devkit/build-angular": "~0.13.0",
     "@angular/cli": "~7.3.4",
     "@angular/compiler-cli": "~7.2.0",
-    "@angular/language-service": "~7.2.0",
+    "@angular/language-service": "~12.2.0",
     "@types/node": "~8.9.4",
     "@types/jasmine": "~2.8.8",
     "@types/jasminewd2": "~2.0.3",