Add support for token exchange in Iceberg REST catalog

[MonkeyCanCode]

Description

With apache/iceberg#13809, there is an option users can use to enable/disable token exchange as refresh. As not all iceberg REST catalog support token exchange, it is beneficial to have this control available on Trino when dealing with iceberg REST catalogs.

Release notes

## Iceberg
* Add support for disabling token exchange via the `iceberg.rest-catalog.oauth2.token-exchange-enabled` config property. ({issue}`27174`)

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to [email protected]. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

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[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to [email protected]. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[ebyhr]

@MonkeyCanCode Please avoid removing the Release notes section from the PR description, and make sure to submit the CLA if you haven’t already.

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to [email protected]. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[MonkeyCanCode]

@MonkeyCanCode Please avoid removing the Release notes section from the PR description, and make sure to submit the CLA if you haven’t already.

Thanks for the quick review. I am sorry for the inconvenience and thanks for helping fixed the description. Yes, I had submit the CLA.

[MonkeyCanCode]

@MonkeyCanCode Please avoid removing the Release notes section from the PR description, and make sure to submit the CLA if you haven’t already.

Thanks for the quick review. I am sorry for the inconvenience and thanks for helping fixed the description. Yes, I had submit the CLA.

@ebyhr CLA check is now passed. Please take a look when you have a chance. Thanks.

[ebyhr]

@MonkeyCanCode Please use rebase instead of merge.

[MonkeyCanCode]

@MonkeyCanCode Please use rebase instead of merge.

@ebyhr would you like me to create a rebase branch instead of continue with current one?

[ebyhr]

@MonkeyCanCode Nope, I already fixed.