fix: cosign verify does not use signing config (#5982)

Signed-off-by: Gustavo Carvalho <gustavo.carvalho@container-solutions.com>

.github/workflows/helm.yml

@@ -158,7 +158,7 @@ jobs:
 
             artifact_digest_uri="${chart_registry}/${chart_name}@${digest}"
             cosign sign --yes --new-bundle-format=false --use-signing-config=false "$artifact_digest_uri"
-            cosign verify --new-bundle-format=false --use-signing-config=false "$artifact_digest_uri" \
+            cosign verify --new-bundle-format=false "$artifact_digest_uri" \
                 --certificate-identity-regexp "https://github.com/$GITHUB_REPOSITORY/.*" \
                 --certificate-oidc-issuer https://token.actions.githubusercontent.com