ci(.goreleaser.yaml): update cosign v3 required arg

Signed-off-by: Massimiliano Giovagnoli <[email protected]>

Author: maxgio92

.goreleaser.yaml

@@ -35,11 +35,10 @@ checksum:
 # https://goreleaser.com/customization/sign
 signs:
   - cmd: cosign
-    certificate: '${artifact}.pem'
+    signature: '${artifact}.sigstore.json'
     args:
       - sign-blob
-      - '--output-certificate=${certificate}'
-      - '--output-signature=${signature}'
+      - '--bundle=${signature}'
       - '${artifact}'
       - '--yes' # needed on cosign 2.0.0+
     artifacts: all