fix: use actions cache v4 to fix the CI

Author: zhongliang02

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           node-version: '16.x'
       - name: Cache Node.js modules
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           # npm cache files are stored in `~/.npm` on Linux/macOS
           path: ~/.npm
@@ -35,7 +35,7 @@ jobs:
         with:
           node-version: '16.x'
       - name: Cache Node.js modules
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           # npm cache files are stored in `~/.npm` on Linux/macOS
           path: ~/.npm