Fix CI: install Node.js 22 for Vite 8 compatibility

Vite 8 requires Node.js 20.19+ or 22.12+. The previous apt install
gave Node.js 18. Switch to NodeSource repo for Node.js 22.

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

.gitea/workflows/ci.yml

@@ -14,9 +14,13 @@ jobs:
     container:
       image: maven:3.9-eclipse-temurin-17
     steps:
-      - name: Install Node.js
+      - name: Install Node.js 22
         run: |
-          apt-get update && apt-get install -y nodejs npm
+          apt-get update && apt-get install -y ca-certificates curl gnupg
+          mkdir -p /etc/apt/keyrings
+          curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+          echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_22.x nodistro main" > /etc/apt/sources.list.d/nodesource.list
+          apt-get update && apt-get install -y nodejs
 
       - uses: actions/checkout@v4