bump: [#4684] Upgrade chai using import-sync for esm-only package

[sw-joelmut]

Addresses #4684
#minor

Description

This PR updates the chai package to its latest version 5.1.2. Starting on version 5.x, this package is ESM-only, so we used import-sync to be able to use this version.

Specific Changes

• Updated chai from 4.5.0 and 5.1.2 in botbuilder and botframework-streaming libraries.
• Added import-sync as a dependency in botbuilder and botframework-streaming.
• Added chai to the depcheck ignore list as it threw a false positive on unused dependency.

Testing

The following images show the installed version.

[coveralls]

Pull Request Test Coverage Report for Build 11797338556

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 84.704%

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Totals
Change from base Build 11687414604:	0.0%
Covered Lines:	20515
Relevant Lines:	23064

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💛 - Coveralls

[ceciliaavila]

We need to replace import-sync as it won't work on Node 22.

[sw-joelmut]

Replaced by #4844