fix(release): add retry logic to curl API calls

Add --retry 3 --retry-delay 2 --retry-connrefused to all Gitea API
curl calls to handle transient connection failures. This addresses
intermittent exit code 7 (connection refused) errors when the K8s
internal service briefly drops connections.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude/settings.local.json

@@ -5,7 +5,8 @@
       "Bash(but rub --help:*)",
       "WebSearch",
       "WebFetch(domain:docs.gitea.com)",
-      "WebFetch(domain:gitea.com)"
+      "WebFetch(domain:gitea.com)",
+      "Bash(but status:*)"
     ]
   }
 }