Overwrite existing conformance files (#1951)

Author: lucacome

.github/workflows/conformance.yml

@@ -153,5 +153,5 @@ jobs:
         if: ${{ inputs.k8s-version == 'latest' && startsWith(github.ref, 'refs/tags/') }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: gh release upload ${{ github.ref_name }} conformance-profile.yaml
+        run: gh release upload ${{ github.ref_name }} conformance-profile.yaml --clobber
         working-directory: ./conformance