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

Bumps [org.jetbrains.kotlinx:kotlinx-serialization-json](https://github.com/Kotlin/kotlinx.serialization) from 1.6.3 to 1.7.0.
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx.serialization@v1.6.3...v1.7.0)

---
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] <[email protected]>

whiskers-ktor-no-db/build.gradle.kts

@@ -37,7 +37,7 @@ kotlin {
                 implementation("io.ktor:ktor-server-cio:$ktorVersion")
                 implementation("io.ktor:ktor-serialization-kotlinx-json:$ktorVersion")
                 implementation("io.ktor:ktor-server-content-negotiation:$ktorVersion")
-                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
+                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.0")
             }
         }
         val nativeTest by getting {