Update kotlinx-coroutines to v1.6.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlinx:kotlinx-coroutines-test	1.6.1 -> 1.6.3
org.jetbrains.kotlinx:kotlinx-coroutines-debug	1.6.1 -> 1.6.3
org.jetbrains.kotlinx:kotlinx-coroutines-jdk8	1.6.1 -> 1.6.3
org.jetbrains.kotlinx:kotlinx-coroutines-core	1.6.1 -> 1.6.3

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Release Notes

Kotlin/kotlinx.coroutines

v1.6.3

Compare Source

• Updated atomicfu version to 0.17.3 (#​3321), fixing the projects using this library with JS IR failing to build (#​3305).

v1.6.2

Compare Source

• Fixed a bug with ThreadLocalElement not being correctly updated when the most outer suspend function was called directly without kotlinx.coroutines (#​2930).
• Fixed multiple data races: one that might have been affecting runBlocking event loop, and a benign data race in Mutex (#​3250, #​3251).
• Obsolete TestCoroutineContext is removed, which fixes the kotlinx-coroutines-test JPMS package being split between kotlinx-coroutines-core and kotlinx-coroutines-test (#​3218).
• Updated the ProGuard rules to further shrink the size of the resulting DEX file with coroutines (#​3111, #​3263). Thanks, @​agrieve!
• Atomicfu is updated to 0.17.2, which includes a more efficient and robust JS IR transformer (#​3255).
• Kotlin is updated to 1.6.21, Gradle version is updated to 7.4.2 (#​3281). Thanks, @​wojtek-kalicinski!
• Various documentation improvements.

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[Kantis]

Kotlin/kotlinx.coroutines#3305