ci: Change auto-merge strategy for Dependabot PRs (#3095)

Author: baywet

.github/workflows/auto-merge-dependabot.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Enable auto-merge for Dependabot PRs
         # Only if version bump is not a major version change
         if: ${{steps.metadata.outputs.update-type != 'version-update:semver-major'}}
-        run: gh pr merge --auto --merge "$PR_URL"
+        run: gh pr merge --auto --squash "$PR_URL"
         env:
           PR_URL: ${{github.event.pull_request.html_url}}
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}