ci: Update to Node 22/24 for tests

Author: nellh

.github/workflows/typescript.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [20.x, 21.x]
+        node-version: [22.x, 24.x]
     steps:
       - uses: actions/checkout@v5
       - name: Use Node.js ${{ matrix.node-version }}