Implement automatic merge conflict resolution in fork sync pipeline
Based on all the conversations in this [issue](https://gitlab.com/gitlab-com/localization/docs-site-localization/-/work_items/706), we've established that we can continue accepting all changes from the master/main and overwrite them directly while fixing merge conflicts. Considering this, I'll update the pipeline to automatically apply master/main whenever there's a merge conflict. What this will do: 1. Anytime there's a merge conflict, it overwrites the conflicted file on `main-translation` using the most recent changes from `master`/`main` , 2. There should be no more merge conflicts on the pipeline, hence no more posts to the #localization-alerts channel.
issue