fix: correct repo URL in crates.io User-Agent header

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: pRizz

scripts/check-crate-version-published.sh

@@ -18,7 +18,7 @@ http_status="$(
     --silent \
     --show-error \
     --location \
-    --user-agent "opencode-cloud-ci (https://github.com/pRizz/opencode-container)" \
+    --user-agent "opencode-cloud-ci (https://github.com/pRizz/opencode-cloud)" \
     --output "${tmp_response}" \
     --write-out '%{http_code}' \
     "${api_url}"