chore(governance): auto-merge to use squash

Author: heitorlessa

.github/workflows/auto-merge.yml

@@ -1,6 +1,8 @@
 name: auto-merge
 
-on: pull_request
+on:
+  pull_request:
+  workflow_dispatch:
 
 permissions:
   contents: write
@@ -17,7 +19,7 @@ jobs:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
       - name: Enable auto-merge for mypy-boto3 stubs Dependabot PRs
         if: ${{contains(steps.metadata.outputs.dependency-names, 'mypy-boto3')}} # && steps.metadata.outputs.update-type == 'version-update:semver-patch'
-        run: gh pr merge --auto --merge "$PR_URL"
+        run: gh pr merge --auto --merge --squash "$PR_URL"
         env:
           PR_URL: ${{github.event.pull_request.html_url}}
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}