github/worldflows: ignore "internal" folder on Go vet

This prevents issuing the following error on 3rd party code:

    internal/go-ole/variant.go:15:21: possible misuse of unsafe.Pointer
    internal/go-ole/variant.go:23:22: possible misuse of unsafe.Pointer
    internal/go-ole/variant.go:33:42: possible misuse of unsafe.Pointer

.github/workflows/lint_go-vet.yml

@@ -19,4 +19,4 @@ jobs:
           go-version: '1.20.x'
       - uses: actions/checkout@v3
       - name: go-vet
-        run: go vet -v ./...
+        run: go vet -v $(go list ./... | grep -v internal)