CI: update Node.js version

Author: azu

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [ 18, 20, 22 ]
+        node-version: [ 22, 24 ]
     steps:
       - name: checkout
         uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1