`runner` process management & tracking

[dacbd]

Several Issues could help be solved by better management of the GHA process.

Not necessarily solving but the following could be helped by this solution.

• Losing network for a while can endup with the runner running forever (GH at least) #1014 @DavidGOrtega?
• No space left on device creates hung EC2 instance #1006 @dacbd
• OOM reaping / crashes @dacbd
• Oddities in runner log parsing/detecting events #1037

For cloud runners, launch the GHA client as a systemd unit to better control the process / separate it from the cml process. Then hook into logs for monitoring/triggering shutdown events etc.

[DavidGOrtega]

Im removing #802 from the list. Its already within the #721 epic