Updates security template
What does this MR do?
Updates security template with the latest steps:
- Clarifies the repositories RM should work on.
- Specifies which tasks should be changed depending of the type of security release (Critical or regular)
- Specifies how to verify auto-deploy branches are synced across repositories.
- Specifies QA task is automatically generated twice, one for the auto-deploy build and another one for tagged release.
- Specifies auto-deploy branches should also be manually synced
- Fixes minor typos
Edited by 🤖 GitLab Bot 🤖