Fix ActionsSelfHostedRunnersClient Delete Calls

[lineville]

• Resolves [BUG]: Fix ActionsSelfHostedRunnersClient Delete calls #2739 by resolving an exception being thrown by all of the Delete___Runner calls
• Passes CancellationToken cancellationToken = default to Create___Token calls to allow for an optional cancellation token.

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Behavior

Before the change?

• Calls to all of the Delete___Runner methods would throw an exception caused by passing the wrong kind of Object to the underlying Delete call. We we're previously passing ApiOptions which are the wrong type and not relevant.

After the change?

• Calls to all of the Delete___Runner methods succeed.
• Calls to the Create__Token methods allow for passing a CancellationToken and still succeed.

Other information

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Additional info

Pull request checklist

• Tests for the changes have been added (for bug fixes / features)
• Docs have been reviewed and added / updated if needed (for bug fixes / features)
• Added the appropriate label for the given change

Does this introduce a breaking change?

Please see our docs on breaking changes to help!

• Yes (Please add the Type: Breaking change label)
• No

If Yes, what's the impact:

• N/A

Pull request type

Please add the corresponding label for change this PR introduces:

• Bugfix: Type: Bug
• Feature/model/API additions: Type: Feature
• Updates to docs or samples: Type: Documentation
• Dependencies/code cleanup: Type: Maintenance

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[nickfloyd]

This LGTM ❤️. Thanks for the 🏕️ work on the comments and descriptions as well.