fix: dependabot automerge

.github/dependabot.yml

@@ -1,9 +1,7 @@
 version: 2
 updates:
-- package-ecosystem: npm
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 10
-  labels:
-    - "dependabot"
+  - package-ecosystem: npm
+    directory: '/'
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10

.github/workflows/nodejs.yml

@@ -13,17 +13,39 @@ jobs:
         os: [ubuntu-latest, macOS-latest, windows-latest]
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
 
-    - name: Install
-      run: |
-        npm install
+      - name: Install
+        run: |
+          npm install
 
-    - name: Test
-      run: |
-        npm test
+      - name: Test
+        run: |
+          npm test
+
+  automerge:
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Dependabot Auto Merge
+        uses: actions/github-script@v3
+        if: ${{ github.actor == 'dependabot[bot]' }}
+        with:
+          github-token: ${{secrets.github_token}}
+          script: |
+            github.pulls.createReview({
+              owner: context.payload.repository.owner.login,
+              repo: context.payload.repository.name,
+              pull_number: context.payload.pull_request.number,
+              event: 'APPROVE'
+            })
+            github.pulls.merge({
+              owner: context.payload.repository.owner.login,
+              repo: context.payload.repository.name,
+              pull_number: context.payload.pull_request.number
+            })

lib/vary.js

@@ -5,8 +5,8 @@ const append = require('vary').append
 // Same implementation of https://github.com/jshttp/vary
 // but adapted to the Fastify API
 function vary (field) {
-  var value = this.getHeader('Vary') || ''
-  var header = Array.isArray(value)
+  let value = this.getHeader('Vary') || ''
+  const header = Array.isArray(value)
     ? value.join(', ')
     : String(value)