Draft: One off enablement migration

What does this MR do and why?

Describe in detail what your merge request does and why.

Migrates all groupdatabase groupglobal search ~"group::sharding" and ~"group::memory" issues, merge requests and epics to ~"devops::data_stores".

Relates to #1013 (closed)

Expected impact & dry-runs

https://gitlab.com/gitlab-org/quality/triage-ops/-/jobs/2515689197

• 1188 merge requests
• 1768 issues
• 371 epics

Action items

• (If applicable) Add documentation to the handbook pages for Triage Operations =>
• (If applicable) Identify the affected groups and how to communicate to them:
  • /cc @person_or_group =>
  • Relevant Slack channels =>
  • Engineering week-in-review