Use CML_TOKEN instead of REPO_TOKEN to

• avoid potential namespace clashes
• better reflect that it could be a project token, org token, bot token, encoded username & password, etc
• better reflect that it's mostly used to launch runners and also is used by runners

• from iterative/cml.dev#122 (comment)
• related #738, #741, #712

When autoscaling a RunnerSet you must set kind: RunnerSet as part of the scaleTargetRef: field, this isn't needed when the HRA is backing a RunnerDeployment. It would be nicer to just always have to set the type so it's less confusing. easier to document and consistent between the 2 runner kinds.

apiVersion: actions.summerwind.dev/v1alpha1
kind: RunnerDeployment
metadata:
  name

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Android 11; Redmi Note 8 Build/RKQ1.201004.002

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Chrome 96.0.4664.92

⚠️ Is your feature request related to a problem? Please describe

Add support for code coverage

💡 Describe the solution you'd like

Ideally we could setup jacoco + codecov to have an automated test report after every push/pr.

🤚 Do you want to develop this feature yourself?

• Yes
• No

This feature is up for grab