chore(deps): update actions/cache action to v2

Author: renovate-bot

.github/workflows/gh-page.yml

@@ -20,7 +20,7 @@ jobs:
           node-version: 15
 
       - name: Use cached node_modules
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: node_modules
           key: nodeModules-${{ hashFiles('**/package-lock.json') }}

.github/workflows/main.yml

@@ -27,7 +27,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Use cached node_modules
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: node_modules
           key: nodeModules-${{ hashFiles('**/package-lock.json') }}