Bump kotlinx-serialization-json from 1.3.3 to 1.4.0 (#94)

Bumps [kotlinx-serialization-json](https://github.com/Kotlin/kotlinx.serialization) from 1.3.3 to 1.4.0.
- [Release notes](https://github.com/Kotlin/kotlinx.serialization/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.serialization/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx.serialization@v1.3.3...v1.4.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlinx:kotlinx-serialization-json
  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>

Author: dependabot[bot]

build.gradle.kts

@@ -46,7 +46,7 @@ dependencies {
 
     implementation("plus.sourceplus:protocol:$projectVersion")
 
-    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.3")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.4.0")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.4")
     implementation("org.slf4j:slf4j-api:$slf4jVersion")
     implementation("org.slf4j:slf4j-nop:$slf4jVersion")