chore: add rate limiting in magic generate endpoint (#5322)

apiserver/plane/authentication/views/app/magic.py

@@ -29,6 +29,7 @@ from plane.authentication.adapter.error import (
     AuthenticationException,
     AUTHENTICATION_ERROR_CODES,
 )
+from plane.authentication.rate_limit import AuthenticationThrottle
 
 
 class MagicGenerateEndpoint(APIView):
@@ -37,6 +38,10 @@ class MagicGenerateEndpoint(APIView):
         AllowAny,
     ]
 
+    throttle_classes = [
+        AuthenticationThrottle,
+    ]
+
     def post(self, request):
         # Check if instance is configured
         instance = Instance.objects.first()