Support Session Tags in `AssumeRoleProviderBuilder`

[c-thiel]

Describe the feature

Currently the AssumeRoleProviderBuilder does not support to pass-through Tags.
The would need to be applied to the fluent builder here:

aws-sdk-rust/sdk/aws-config/src/sts/assume_role.rs

Lines 252 to 259 in 8f2cbaf

	let fluent_builder = sts_client
	.assume_role()
	.set_role_arn(Some(self.role_arn))
	.set_external_id(self.external_id)
	.set_role_session_name(Some(session_name))
	.set_policy(self.policy)
	.set_policy_arns(self.policy_arns)
	.set_duration_seconds(self.session_length.map(|dur| dur.as_secs() as i32));

As all inner fields are immutable, there is currently no way to work with tags.

Use Case

Permissions

Proposed Solution

See feature description

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

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[c-thiel]

A manual fix would look like this: c901626

A lot of the code in this file seems to be written from humans, would a PR for this be fine? Or does this need to be fixed upstream via smithy?

[aajtodd]

A lot of the code in this file seems to be written from humans, would a PR for this be fine? Or does this need to be fixed upstream via smithy?

Needs to fixed upstream in smithy-rs: https://github.com/smithy-lang/smithy-rs/blob/main/aws/rust-runtime/aws-config/src/sts/assume_role.rs