fix: use correct mongo user password to instance config

SE-6524

Author: kaustavb12

tooling/phd/cli/instance_create.py

@@ -393,8 +393,8 @@ def _update_mongodb_password(
         mongodb_password = k8s_client.read_secret(
             PHD_MONGODB_USER_PASSWORD_SECRET, instance_name
         )
-        print(mongodb_password)
-        print(config_data["MONGODB_PASSWORD"])
+        print(mongodb_password["data"])
+        print(config_data)
         config_data["MONGODB_PASSWORD"] = "abcd1234"
         print(config_data["MONGODB_PASSWORD"])
         with open(config_file, "w", encoding="utf-8") as f: