chore: go mod tidy (#110)

Must have forgotten to do this a while ago?

Author: sd2k

go.mod

@@ -3,6 +3,7 @@ module github.com/grafana/mcp-grafana
 go 1.24.0
 
 require (
+	github.com/go-openapi/runtime v0.28.0
 	github.com/go-openapi/strfmt v0.23.0
 	github.com/google/uuid v1.6.0
 	github.com/grafana/amixr-api-go-client v0.0.21
@@ -30,7 +31,6 @@ require (
 	github.com/go-openapi/jsonpointer v0.21.0 // indirect
 	github.com/go-openapi/jsonreference v0.21.0 // indirect
 	github.com/go-openapi/loads v0.22.0 // indirect
-	github.com/go-openapi/runtime v0.28.0 // indirect
 	github.com/go-openapi/spec v0.21.0 // indirect
 	github.com/go-openapi/swag v0.23.0 // indirect
 	github.com/go-openapi/validate v0.24.0 // indirect