Update actions/cache action to v3

Author: renovate-bot

.github/workflows/main.yml

@@ -19,7 +19,7 @@ jobs:
         node-version: ${{ matrix.node-version }}
 
     - name: Cache node modules
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         # npm cache files are stored in `~/.npm` on Linux/macOS
         path: '**/node_modules'