chore: upgrade github-action-merge-dependabot to v3 (#58)

.github/workflows/ci.yml

@@ -1,44 +1,47 @@
 name: CI
-
 on:
   push:
     paths-ignore:
-      - 'docs/**'
+      - docs/**
       - '*.md'
   pull_request:
     paths-ignore:
-      - 'docs/**'
+      - docs/**
       - '*.md'
-
 jobs:
   test:
     runs-on: ${{ matrix.os }}
-
     strategy:
       matrix:
-        node-version: [10, 12, 13, 14, 16]
-        os: [macos-latest, ubuntu-latest, windows-latest]
-
+        node-version:
+          - 10
+          - 12
+          - 13
+          - 14
+          - 16
+        os:
+          - macos-latest
+          - ubuntu-latest
+          - windows-latest
     steps:
       - uses: actions/checkout@v2
-
       - name: Use Node.js
         uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
-
       - name: Install Dependencies
         run: |
           npm install --ignore-scripts
-
       - name: Run Tests
         run: |
           npm test
-
   automerge:
     needs: test
     runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+      contents: write
     steps:
-      - uses: fastify/github-action-merge-dependabot@v2.7.1
+      - uses: fastify/github-action-merge-dependabot@v3
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}