chore!: drop support for Node 16

Author: Codex-

.github/workflows/build.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [16.x, 18.x, 20.x, 22.x]
+        node-version: [18.x, 20.x, 22.x]
     steps:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v4