chore: update @angualr-devkit/build-angular@12

Author: christopherthielen

package.json

@@ -37,7 +37,7 @@
     "zone.js": "~0.10.2"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.1102.7",
+    "@angular-devkit/build-angular": "12",
     "@angular/cli": "11.2.6",
     "@angular/compiler-cli": "11.2.7",
     "@angular/language-service": "11.2.7",