Change branch from c03ca3c387b2cd9b3d8d2fbd56d2a9e6b7b603fb to main for Grafana server to resolve issue where new changes are not being built (github#14)

Co-authored-by: naf <[email protected]>

Author: frogshell

servers/grafana/server.yaml

@@ -12,7 +12,7 @@ about:
   icon: https://avatars.githubusercontent.com/u/7195757?s=200&v=4
 source:
   project: https://github.com/grafana/mcp-grafana
-  branch: c03ca3c387b2cd9b3d8d2fbd56d2a9e6b7b603fb
+  branch: main
 run:
   command:
     - --transport=stdio