Merge pull request #31547 from mbohlool/fix2

Automatic merge from submit-queue

Ignore staging folder in update gofmt

small bugfix in hack/update-gofmt.sh

hack/update-gofmt.sh

@@ -38,6 +38,7 @@ find_files() {
         -o -wholename './target' \
         -o -wholename '*/third_party/*' \
         -o -wholename '*/vendor/*' \
+        -o -wholename './staging' \
       \) -prune \
     \) -name '*.go'
 }