Update dependency org.jetbrains.kotlinx:kotlinx-serialization-json to v1.4.1

This MR contains the following updates:

Package	Type	Update	Change
org.jetbrains.kotlinx:kotlinx-serialization-json	dependencies	patch	1.4.0 -> 1.4.1

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Release Notes

Kotlin/kotlinx.serialization

v1.4.1

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This is patch release contains several bugfixes and improvements. Kotlin 1.7.20 is used by default.

Improvements

• Add @​MustBeDocumented to certain annotations (#​2059)
• Deprecate .isNullable in SerialDescriptor builder (#​2040)
• Unsigned primitives and unsigned arrays serializers can be retrieved as built-ins (#​1992)
• Serializers are now cached inside reflective lookup, leading to faster serializer retrieval (#​2015)
• Compiler plugin can create enum serializers using static factories for better speed (#​1851) (Kotlin 1.7.20 required)
• Provide foundation for compiler plugin intrinsics available in Kotlin 1.8.0 (#​2031)

Bugfixes

• Support polymorphism in Properties format (#​2052) (thanks to Rodrigo Vedovato)
• Added support of UTF-16 surrogate pairs to okio streams (#​2033)
• Fix dependency on core module from HOCON module (#​2020) (thanks to Osip Fatkullin)

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