fix(peer-dependency): angular common/core versions were not bumped to 13

Fixes #41

Author: maxime1992

projects/ngx-favicon/package.json

@@ -2,7 +2,7 @@
   "name": "ngx-favicon",
   "version": "0.0.1",
   "peerDependencies": {
-    "@angular/common": "11.1.0",
-    "@angular/core": "11.1.0"
+    "@angular/common": "^13.0.0",
+    "@angular/core": "^13.0.0"
   }
 }