ci(GitHub): update Node versions used in CI

Author: Kampfmoehre

.github/workflows/main.yml

@@ -59,7 +59,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        node: ["18", "20"]
+        node: ["22", "24"]
     steps:
       - uses: actions/checkout@v5
       - name: Use NodeJS
@@ -87,7 +87,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
       - name: Install packages
         run: npm ci --no-fund
       - name: Download lib from build job