remove node 16 then, we won't break compatibility anyway because we're not using any node APIs

.github/workflows/ci.yml

@@ -17,19 +17,19 @@ jobs:
     strategy:
       matrix:
         include:
-          - node-version: 16
+          - node-version: 18
             os: ubuntu-latest
-          - node-version: 16
+          - node-version: 18
             os: windows-latest
-          - node-version: 16
-            os: macOS-latest
           - node-version: 18
-            os: ubuntu-latest
+            os: macOS-latest
           - node-version: 20
             os: ubuntu-latest
+          - node-version: 22
+            os: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: pnpm/action-setup@v2.4.1
+      - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}