update github workflow

update version to 3.1.7

Author: Faleij

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     - uses: actions/checkout@v7
     - uses: volta-cli/action@v5
       with:
-        node-version: 24
+        node-version: 22.23.0
     - run: npm ci
     - run: npm run lint
     - run: npm run build
@@ -59,7 +59,7 @@ jobs:
         args: unzip -qq node_modules.zip -d .
     - uses: volta-cli/action@v4
       with:
-        node-version: 24
+        node-version: 22.23.0
     - run: npm run coverage
     - uses: actions/upload-artifact@v4
       with:
@@ -91,4 +91,5 @@ jobs:
     - uses: volta-cli/action@v4
       with:
         node-version: ${{ matrix.node }}
-    - run: volta run --node ${{ matrix.node }} npm test
+    # Don't use npm here — volta pins npm@11 which requires Node 20+ and node: imports
+    - run: volta run --node ${{ matrix.node }} node node_modules/mocha/bin/mocha --require source-map-support/register -R spec -b "test/*.spec.js"