fix: allow missing types of rule bypasses

[languitar]

This PR attempts to resolve an issue where the provider is not able to create bypass rules that don't use the explicit values set in this provider. The provider itself is out of date. There is no need for the provider to do the check as the API and helps will do the checks for us.

I've taken the liberty to update #2588 with the pending suggestions.

Resolves #2254
Resolves #2588

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Before the change?

Users would not be able to make a bypass rule that uses something like a DeployKey

  bypass_actors {
    actor_type  = "DeployKey"
    bypass_mode = "always"
  }

After the change?

Users can make any bypass rule that is accepted by the API

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)

Does this introduce a breaking change?

Please see our docs on breaking changes to help!

• Yes
• No

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