Add enable and disable a Workflow (#3088)

- add method to disable a workflow ([API
reference](https://docs.github.com/en/rest/actions/workflows?apiVersion=2022-11-28#disable-a-workflow))
- add method to enable a workflow ([API
reference](https://docs.github.com/en/rest/actions/workflows?apiVersion=2022-11-28#enable-a-workflow))

Fixes #2846

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Co-authored-by: Enrico Minack <github@enrico.minack.dev>