Bump org.jetbrains.kotlinx:kotlinx-serialization-json

Bumps [org.jetbrains.kotlinx:kotlinx-serialization-json](/~https://github.com/Kotlin/kotlinx.serialization) from 1.4.0-RC to 1.7.0-RC.
- [Release notes](/~https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](/~https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx.serialization@v1.4.0-RC...v1.7.0-RC)

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

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -21,7 +21,7 @@
     <properties>
         <kotlin.version>1.9.23</kotlin.version>
         <kotlin.compiler.incremental>true</kotlin.compiler.incremental>
-        <kotlinx.serialization.version>1.4.0-RC</kotlinx.serialization.version>
+        <kotlinx.serialization.version>1.7.0-RC</kotlinx.serialization.version>
         <ktor.version>2.3.10</ktor.version>
         <java.version>11</java.version>
         <prometheus.version>1.12.4</prometheus.version>