refactor: squash dependabot PRs (#916)

Author: mfranzke

.github/workflows/99-auto-merge.yml

@@ -22,7 +22,7 @@ jobs:
 
       - name: 🤖 Enable auto-merge for Dependabot PRs
         if: ${{steps.metadata.outputs.update-type == 'version-update:semver-patch'}}
-        run: gh pr merge --auto --merge "$PR_URL"
+        run: gh pr merge --auto --squash "$PR_URL"
         env:
           PR_URL: ${{github.event.pull_request.html_url}}
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}