chore: Use caching in setup-node

NPM caching is now built into setup-node, so the manual cache can be removed
Use the top level v2 checkout at the same time

.github/workflows/cleanup-staging.yml

@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2
 
       - name: Setup GCloud
         uses: google-github-actions/setup-gcloud@master

.github/workflows/gatsby.yml

@@ -6,17 +6,14 @@ jobs:
   test-ci:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2
 
-      - uses: actions/cache@v2.1.6
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
         with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-
+          cache: npm
 
       - name: Install Dependencies
-        if: steps.cache.outputs.cache-hit != 'true'
         run: npm ci
 
       - name: Run test and coverage

.github/workflows/generate-preview.yml

@@ -10,7 +10,7 @@ jobs:
     if: github.event.label.name == 'create-preview'
     steps:
 
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2
         with:
           ref: ${{ github.event.pull_request.head.sha }}
 

.github/workflows/test.yml

@@ -10,19 +10,14 @@ jobs:
   test-ci:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2
 
-      - uses: actions/setup-node@v2.4.1
-
-      - uses: actions/cache@v2.1.6
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
         with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-
+          cache: npm
 
       - name: Install Dependencies
-        if: steps.cache.outputs.cache-hit != 'true'
         run: npm ci
 
       - name: Run linting

.github/workflows/upload-to-staging.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event.issue.pull_request != null && github.event.comment.body == '/preview'
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2
 
       - name: Checkout Git Branch
         run: |