fix: add --force-exit to cucumber to handle unclosed handles after tests

The slidingWindowRateLimiterFactory creates a RedisAdapter singleton that
calls client.connect() on first WebSocket connection and has no teardown
path. --force-exit ensures the process exits cleanly after tests complete
rather than hanging on the open Redis socket.

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

Author: github-manager

cucumber.js

@@ -4,6 +4,7 @@ const base = [
   '--require test/integration/features/**/*.ts',
   '--require test/integration/features/*.ts',
   '--publish-quiet',
+  '--force-exit',
 ].join(' ')
 
 const config = [