Revert neon change. The main branch's Docker build isn't building and the custom branch defined doesn't exist anymore. Will revisit later

Author: kgprs

servers/neon/server.yaml

@@ -11,6 +11,7 @@ about:
   icon: https://github.com/__avatars/u/183852044?s=200&v=4
 source:
   project: https://github.com/neondatabase-labs/mcp-server-neon
+  branch: dbfa184afd9fc677c0d6b007a62b33194e883821
 config:
   secrets:
     - name: neon.api_key