Update actions/cache action to v3

| datasource  | package       | from | to |
| ----------- | ------------- | ---- | -- |
| github-tags | actions/cache | v2   | v3 |

Author: renovate-bot

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/setup-node@v3
         with:
           node-version-file: '.nvmrc'
-      - uses: actions/cache@v2
+      - uses: actions/cache@v3
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}