feat: upgrade CI Node.js versions from 18/20 to 20/22 (#511)

Author: Copilot

.github/workflows/main.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [^18, ^20]
+        node-version: [^20, ^22]
     steps:
       - uses: actions/checkout@v2