fix: e2e tests

Signed-off-by: Vishal Choudhary <[email protected]>

cmd/examples/notary-attestation-verification/bad-out.txt

@@ -3,4 +3,4 @@ Results for policy: test
 Results for rule: notary-attestation
 Verifying image: ghcr.io/kyverno/test-verify-image:unsigned, result: FAIL
 Failures:
-failed to verify ghcr.io/kyverno/test-verify-image@sha256:74a98f0e4d750c9052f092a7f7a72de7b20f94f176a490088f7a744c76c53ea5: no signature is associated with "ghcr.io/kyverno/test-verify-image@sha256:74a98f0e4d750c9052f092a7f7a72de7b20f94f176a490088f7a744c76c53ea5", make sure the artifact was signed successfully
+failed to fetch attestations %!s(<nil>)