WIP: Add support for merging security merge requests
This adds the ability to automatically merge security merge requests (should they be valid) using chatops. Once the merging is complete, a Slack notification is sent informing the user about how many merge requests were merged and which ones could not be merged.
- Write tests
See if it's possible to only merge MRs mentioned in the security issue
- How would we determine what the security issue is?
- What if there are multiple security issues?
- Scrapped for now as we are moving to .com anyway