Remove a workaround for kotlinx-io version mismatch

[krzema12]

github-workflows-kt/shared-internal/build.gradle.kts

Lines 19 to 26 in 6d7a4c8

	// It's a workaround for a problem with Kotlin Scripting, and how it resolves
	// conflicting versions: https://youtrack.jetbrains.com/issue/KT-69145
	// As of adding it, ktor-serialization-kotlinx-json depends on kotlinx-io-core:0.4.0,
	// and because of how Scripting resolves the libraries, 0.4.0 is used in the script,
	// leading to a runtime failure of not being able to find a class or a function.
	// I'm bumping kotlinx-io to 0.6.0 in kotlinx.serialization here: https://github.com/Kotlin/kotlinx.serialization/pull/2933
	// Here's a ticket to remember to remove this workaround: https://github.com/typesafegithub/github-workflows-kt/issues/1832
	runtimeOnly("org.jetbrains.kotlinx:kotlinx-io-core:0.6.0")