chore(deps): update actions/cache action to v4

| datasource  | package       | from | to |
| ----------- | ------------- | ---- | -- |
| github-tags | actions/cache | v2   | v4 |

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
       - uses: actions/setup-node@v2-beta
         with:
           node-version: "${{ steps.nvm.outputs.NVMRC }}"
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}