gitsign --verify panics on empty-certificate PKCS7 and exits 0, bypassing exit-code callers

{
                    "vendor": "sigstore",
                    "product": "gitsign",
                    "versions": [
                        {
                            "version": ">= 0.4.0, < 0.15.0",
                            "status": "affected"
                        }
                    ]
                }