ci: bump cache action to v4

Author: naorpeled

.github/workflows/publish.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           node-version: 16
           registry-url: https://registry.npmjs.org
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package.json') }}