docs: Remove the invalid `provider` argument from the `oidc_providers` variable description

[AndrewCharlesHay]

Description

The provider attribute is never accessed and thus shouldn't be listed. It also changes the type of oidc_providers from any to a map(any) because it is a map.

Motivation and Context

It clutters the requirements for the variable and thus should be removed

Breaking Changes

If someone used to pass something into oidc_providers it will now throw an error at an earlier stage of validation

How Has This Been Tested?

• [ ] I have updated at least one of the examples/* to demonstrate and validate my change(s)
• [ ] I have tested and validated these changes using one or more of the provided examples/* projects
• [X] I have executed pre-commit run -a on my pull request

[AndrewCharlesHay]

I didn't mean to commit the SID addition to this PR. I can make a new PR if you want.

[AndrewCharlesHay]

@bryantbiggs Thank you for the merge! I understand if you want them in a separate PR. But what is wrong with changing the type to map(any) instead of just any?

[bryantbiggs]

when you go with a type, other than any, you are forcing users into using the same shape on every input. so for example, if you had something like the following that was acceptable for use by the underlying resource, if you used any it will work, if you used map(any), it will complain that the objects are of different types (one has colors and the other does not):

  foo = {
    one = {
      hot = true
      cups = 2
      colors = ["orange", "blue"]
    }
    two = {
      hot = false
      cups = 1
    }
  }

So we typically just default to any for complex types so that users have the most flexibility and can provide only the values they wish

[AndrewCharlesHay]

Ohh yeah I've run into that before. But we would want to ensure that every object has just provider_arn and namespace_service_accounts right?

[AndrewCharlesHay]

Both attributes are referenced in each iteration so we need both and wouldn't want anything else right? I guess it would somewhat unnecessarily make things not backwards compatible.

[antonbabenko]

This PR is included in version 5.33.1 :tada:

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