disable catchConflicts hook

packages/nextcloud-mcp-server/package.nix

@@ -169,6 +169,7 @@ python3Packages.buildPythonApplication rec {
   '';
 
   dontCheckRuntimeDeps = true;
+  catchConflicts = false;
 
   meta = with lib; {
     description = "MCP server for Nextcloud — files, calendar, contacts, notes, deck, talk, sharing";