Update dependency org.jetbrains.kotlinx:kotlinx-serialization-core to v1.6.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlinx:kotlinx-serialization-core	1.4.1 -> 1.6.0

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Release Notes

Kotlin/kotlinx.serialization (org.jetbrains.kotlinx:kotlinx-serialization-core)

v1.6.0

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This release contains all features and bugfixes from 1.6.0-RC plus some bugfixes on its own (see below).
Kotlin 1.9.0 is used as a default, while 1.9.10 is also supported.

Bugfixes

• Improve error messages from Json parser (#​2406)
• Mark @​SerialName, @​Required and @​Transient with @​MustBeDocumented (#​2407)
• Ensure that no additional files except java compiler output get into multi-release jar (#​2405)
• Fix enums with negative numbers in protobuf not serializing & de-serializing (#​2400) (thanks to Doğaç Eldenk)

v1.5.1

==================
This release contains an important Native targets overhaul, as well as numerous enhancements and bugfixes.
Kotlin 1.8.21 is used by default.

New set of Native targets

The official Kotlin target support policy has recently been published
describing new target policy: each target belongs to a certain tier, and different tiers have different stability guarantees.
The official recommendation for library authors is to support targets up to Tier 3,
and kotlinx.serialization now follows it.
It means that in this release, there are a lot of new targets added from this tier,
such as androidNativeX86 or watchosDeviceArm64.
Note that since they belong to Tier 3, they're not auto-tested on CI.

kotlinx.serialization also ships some deprecated Kotlin/Native targets that do not belong to any tier (e.g. iosArm32, mingwX86).
We'll continue to release them, but we do not provide support for them, nor do we plan to add new targets from the deprecated list.

Improvements in Json elements

There are two new function sets that should make creating raw Json elements easier.
First one contains overloads for JsonPrimitive constructor-like function
that accept unsigned types: JsonPrimitive(1u).
Second one adds new addAll functions to JsonArrayBuilder to be used with collections
of numbers, booleans or strings: buildJsonArray { addAll(listOf(1, 2, 3)) }
Both were contributed to us by aSemy.

Other enhancements

• Potential source-breaking change: Rename json-okio target variables to sink (#​2226)
• Function to retrieve KSerializer by KClass and type arguments serializers (#​2291)
• Added FormatLanguage annotation to Json methods (#​2234)
• Properties Format: Support sealed/polymorphic classes as class properties (#​2255)

Bugfixes

• KeyValueSerializer: Fix missing call to endStructure() (#​2272)
• ObjectSerializer: Respect sequential decoding (#​2273)
• Fix value class encoding in various corner cases (#​2242)
• Fix incorrect json decoding iterator's .hasNext() behavior on array-wrapped inputs (#​2268)
• Fix memory leak caused by invalid KTypeWrapper's equals method (#​2274)
• Fixed NoSuchMethodError when parsing a JSON stream on Java 8 (#​2219)
• Fix MissingFieldException duplication (#​2213)

v1.5.0

==================

This release contains all features and bugfixes from 1.5.0-RC plus some experimental features and bugfixes on its own (see below).
Kotlin 1.8.10 is used as a default.

HoconEncoder and HoconDecoder interfaces and HOCON-specific serializers

These interfaces work in a way similar to JsonEncoder and JsonDecoder: they allow intercepting (de)serialization process,
making writing if custom HOCON-specific serializers easier. New ConfigMemorySizeSerializer and JavaDurationSerializer already make use of them.
See more details in the PR.
Big thanks to Alexander Mikhailov for contributing this!

Ability to read buffered huge strings in custom Json deserializers

New interface ChunkedDecoder allows you to read huge strings that may not fit in memory by chunks.
Currently, this interface is only implemented by Json decoder that works with strings and streams,
but we may expand it later, if there's a demand for it.
See more details in the PR authored by Alexey Sviridov.

Bugfixes

• Improve runtime exceptions messages (#​2180)
• Added support for null values for nullable enums in lenient mode (#​2176)
• Prevent class loaders from leaking when using ClassValue cache (#​2175)

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