Update dependency com.willowtreeapps.assertk:assertk to v0.28.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
com.willowtreeapps.assertk:assertk	0.28.0 → 0.28.1

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Release Notes

willowtreeapps/assertk (com.willowtreeapps.assertk:assertk)

v0.28.1

Added

• Added core wasmWasi support, wasmJs to coroutines

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Configuration

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