Add TestExtract for interval type

[attilakreiner]

Description

This change adds the TestExtract test class for testing the interval type.

Additional context and related issues

Fixes #5627

Release notes

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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 cla@trino.io. 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

[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 cla@trino.io. 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

[wendigo]

@attilakreiner have you signed CLA already?

[martint]

@cla-bot check

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[attilakreiner]

@attilakreiner have you signed CLA already?

@wendigo yep, done now.

[wendigo]

@attilakreiner thanks! Change merged :)

[attilakreiner]

@attilakreiner thanks! Change merged :)

Great, thanks! 😎🎉👍