Push sqlx files updates into a new branch instead of pushing to master

Author: GuillaumeGomez

.github/workflows/commit-sqlx-changes.yml

@@ -60,7 +60,7 @@ jobs:
             git config --global user.email 'docs.rs@users.noreply.github.com'
             git add .sqlx
             git commit -m 'Update SQLX files'
-            git push
+            git push origin HEAD:docs.rs-sqlx-files-update
           fi
 
       - name: Clean up the database