Revert "ci(workflow): add 'npm' cache for actions/setup-node in .github/workflows (#1382)"

This reverts commit 2723f00cb8.

.github/workflows/generate-theme-doc.yml

@@ -14,10 +14,9 @@ jobs:
     steps:
       - uses: actions/checkout@v1
       - name: setup node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v1
         with:
           node-version: "12.x"
-          cache: npm
 
       - name: npm install, generate readme
         run: |

.github/workflows/test.yml

@@ -16,10 +16,20 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Setup Node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v1
         with:
           node-version: "12.x"
-          cache: npm
+
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: ~/.npm
+          key:
+            ${{ runner.os }}-npm-cache-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-npm-cache-
 
       - name: Install & Test
         run: |