FAI-8461 - Fix ts-jest deprecation warning

[cjwooo]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist

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• Have you checked to there aren't other open Pull Requests for the same update/change?
• Have you lint your code locally before submission?
• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable?
• Have you successfully run tests with your changes locally?

[tovbinm]

kudos!!!

[cjwooo]

I stole the solution from @jeniii

[jeniii]

i update to "\\.[jt]sx?$" as it seems to be the default regex https://jestjs.io/docs/configuration#transform-objectstring-pathtotransformer--pathtotransformer-object
but it probably doesn't matter. just fyi