fix: package lock, ci yaml

Author: miguelangarano

.github/workflows/sharded-vitest.yml

@@ -22,11 +22,10 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "18"
-          cache: "npm"
+          node-version: "20"
 
       - name: Install dependencies
-        run: npm i
+        run: npm ci
 
       - name: Run Vitest Tests (Shard ${{ matrix.shard }}/${{ matrix.total-shards }})
         continue-on-error: true