fix govulncheck image promotion (#8648)

Author: vepatel

.github/workflows/image-promotion.yml

@@ -146,6 +146,8 @@ jobs:
       - name: govulncheck
         uses: golang/govulncheck-action@b625fbe08f3bccbe446d94fbf87fcc875a4f50ee # v1.0.4
         with:
+          repo-checkout: false
+          cache: false
           output-format: sarif
           output-file: govulncheck.sarif