chore: add Node v18 and v20 to test workflows

.github/workflows/test.yml

@@ -13,11 +13,13 @@ jobs:
     strategy:
       matrix:
         bson: [4.x, 5.x, 6.x]
+        node-version: [16.x, 18.x, 20.x]
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/[email protected]
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
         with:
-          node-version: '16.x'
+          node-version: ${{ matrix.node-version }}
       - run: yarn install --frozen-lockfile # will run `yarn install` command
       - run: yarn add bson@${{ matrix.bson }}
       - run: yarn sanity # will check if building works & if code is formatted well