Merge pull request #178 from CyberAgentAILab/fix/ci-node-version

ci: upgrade to Node.js 22 and opt into Node.js 24 actions runtime

Author: ryaukwan

.github/workflows/main.yml

@@ -4,6 +4,9 @@ on:
   push:
     branches: [main]
 
+env:
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -14,7 +17,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20.x
+          node-version: 22.x
 
       - name: Install NPM packages
         run: npm ci