fix(ci): upgrade Node.js from 20 to 22 LTS for ES2024 API support

Problems using Object.groupBy() and Set.union/intersection/difference
fail on Node 20. Node 22 is the current LTS and supports these APIs.

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

Author: davidagustin

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  NODE_VERSION: '20'
+  NODE_VERSION: '22'
   PNPM_VERSION: '9'
 
 jobs: