Bump kotlinxSerialization from 1.6.3 to 1.7.1 (#4134)

Bumps `kotlinxSerialization` from 1.6.3 to 1.7.1.

Updates `org.jetbrains.kotlinx:kotlinx-serialization-json` from 1.6.3 to 1.7.1
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Kotlin/kotlinx.serialization/compare/v1.6.3...v1.7.1)

Updates `org.jetbrains.kotlinx:kotlinx-serialization-protobuf` from 1.6.3 to 1.7.1
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Kotlin/kotlinx.serialization/compare/v1.6.3...v1.7.1)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlinx:kotlinx-serialization-json
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlinx:kotlinx-serialization-protobuf
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

gradle/libs.versions.toml

@@ -40,7 +40,7 @@ splitties = "3.0.0"
 rhino = "1.7.15"
 
 activity = "1.8.2"
-kotlinxSerialization = "1.6.3"
+kotlinxSerialization = "1.7.1"
 swiperefreshlayout = "1.1.0"
 viewpager2 = "1.0.0"
 webkit = "1.11.0"