Add runner status column

What does this MR do and why?

Add runner status column

This change addds the runner status columns in the runner group details table, in the runner details page.

Changelog: added

Screenshots or screen recordings

See the new Status column added:

Before	After

How to set up and validate locally

You may see 0 or 1 on most test runners you use, to test this we can simulate having two separate machines with runner installed.

Install runner locally

1. brew install runner works on MacOS (you may have to install an older version of runners)

Follow the instructions to create a runner

1. Admin -> Runners
2. Select "Create instance runner"
3. Ensure you run the gitlab-runner register ... step

Simulate two machines

1. Duplicate the configuration files cp -R ~/.gitlab-runner ~/.gitlab-runner-2
2. Edit the random system id open ~/.gitlab-runner-2/.runner_system_id (changing one character will do)
3. Run runner 1 gitlab-runner run
   • the default configuration at ~/.gitlab-runner will be used
4. In another console tab, run runner 2 gitlab-runner run --config ~/.gitlab-runner-2/config.toml

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #415399 (closed)