fix: update angular core peer dep typo (#110)

Author: aaron-steinfeld

projects/hyperdash-angular/package.json

@@ -15,7 +15,7 @@
   },
   "peerDependencies": {
     "@angular/common": "^11.0.2",
-    "@angular/core": "^12.0.2",
+    "@angular/core": "^11.0.2",
     "@angular/platform-browser": "^11.0.2",
     "core-js": "^3.7.0",
     "rxjs": "^6.6.3",