chore(deps): bump kotlin from 1.9.25 to 2.1.20 (#383)

Bumps `kotlin` from 1.9.25 to 2.1.20.

Updates `org.jetbrains.kotlin.android` from 1.9.25 to 2.1.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.25...v2.1.20)

Updates `org.jetbrains.kotlin.plugin.serialization` from 1.9.25 to 2.1.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.25...v2.1.20)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.android
  dependency-version: 2.1.20
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.jetbrains.kotlin.plugin.serialization
  dependency-version: 2.1.20
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 #jetbrains
 geocoderVersion = "3.5"
-kotlin = "1.9.25"
+kotlin = "2.1.21"
 kotlinxSerializationJson = "1.6.3"
 #Detekt
 detekt = "1.23.3"