ci: start testing against 22 (#717)

Author: wolfy1339

.github/workflows/test.yml

@@ -15,6 +15,7 @@ jobs:
         node_version:
           - 18
           - 20
+          - 22
     steps:
       - uses: actions/checkout@v4
       - name: Test with Node.js ${{ matrix.node_version }}