Write a GHA workflow to continually check for and remove unhealthy content-build runners.

[ndouglas]

Description

An instance can be marked unhealthy by the ASG, but GHA will blithely continue to run jobs on it.

One way of working around this would be to run a script that checks the health of the host instance for every GHA runner on a regular basis (let's say 1-5 minutes) and deletes runners on unhealthy instances.

There might be other ways to approach the problem.

Acceptance Criteria

• Runners are deleted when the host instance is marked unhealthy so that new jobs cannot be assigned to it.

[BerniXiongA6]

Hey @ariperez -- do we know how many points were completed in Sprint 96 and how many points are left to carry over to Sprint 97? Thanks! cc: @ndouglas

[BerniXiongA6]

Hey @ariperez -- do we know how many points were completed in Sprint 97 and how many points are left to carry over to Sprint 98? Thanks! cc: @ndouglas @maortiz-27-80