feat: verify GPG key import

Author: tolgaOzen

.github/workflows/release.yaml

@@ -28,9 +28,9 @@ jobs:
           gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
           passphrase: ${{ secrets.GPG_KEY_PASSPHRASE }}
 
-      - name: Export GPG key
-        run: gpg --export-secret-keys > ~/.gnupg/pubring.gpg
-        
+      - name: Verify GPG Key Import
+        run: gpg --list-secret-keys
+
       - name: Set up Helm
         uses: azure/setup-helm@v4
         with: