Update dependabot.yml

New try

Author: Thiago C. D'Ávila

.github/workflows/dependabot.yml

@@ -2,22 +2,21 @@ name: Dependabot
 
 on:
   pull_request:
-    branches:
-      - master
+    branches: [ master ]
 
 jobs:
   automerge:
     name: Merge pull request
     runs-on: ubuntu-latest
     if: github.base_ref == 'master' && github.actor == 'dependabot[bot]'
     steps:
-      - name: Merge
-        uses: actions/github-script@0.2.0
-        with:
-          github-token: ${{github.token}}
-          script: |
-            github.pullRequests.merge({
-              owner: context.payload.repository.owner.login,
-              repo: context.payload.repository.name,
-              pull_number: context.payload.pull_request.number
-            })
+    - name: Merge
+      uses: actions/github-script@0.2.0
+      with:
+        github-token: ${{github.token}}
+        script: |
+          github.pullRequests.merge({
+            owner: context.payload.repository.owner.login,
+            repo: context.payload.repository.name,
+            pull_number: context.payload.pull_request.number
+          })