Update dependency ts-loader to v9.4.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ts-loader	9.4.1 -> 9.4.2

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Release Notes

TypeStrong/ts-loader

### [`v9.4.2`](https://togithub.com/TypeStrong/ts-loader/blob/HEAD/CHANGELOG.md#​942) [Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/9.4.1...v9.4.2) - [Bug fix: Use custom transformer when building solution references](https://togithub.com/TypeStrong/ts-loader/pull/1550) \[[#​1025](https://togithub.com/TypeStrong/ts-loader/issues/1025)] - thanks [@​feosuna1](https://togithub.com/feosuna1)

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