Bump kotlinx-serialization-core-jvm from 1.3.3 to 1.4.0

Bumps [kotlinx-serialization-core-jvm](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-core-jvm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -15,7 +15,7 @@ repositories {
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.21"
-    implementation "org.jetbrains.kotlinx:kotlinx-serialization-core-jvm:1.3.3"
+    implementation "org.jetbrains.kotlinx:kotlinx-serialization-core-jvm:1.4.0"
     implementation "com.amazon.ion:ion-java:1.9.5"
     testImplementation "io.kotest:kotest-runner-junit5:5.3.0"
     testImplementation "io.kotest:kotest-assertions-core:5.4.2"