test: use copyloopvar golint rule

Author: andyzhangx

.github/workflows/static.yaml

@@ -16,7 +16,7 @@ jobs:
               uses: golangci/golangci-lint-action@v6
               with:
                   version: v1.64
-                  args: -E=gofmt,unused,ineffassign,revive,misspell,exportloopref,asciicheck,bodyclose,contextcheck --timeout=30m0s
+                  args: -E=gofmt,unused,ineffassign,revive,misspell,copyloopvar,asciicheck,bodyclose,contextcheck --timeout=30m0s
     verify-helm:
         name: Verify Helm
         runs-on: ubuntu-latest