Bump coroutineVersion from 1.4.2 to 1.4.3-native-mt

Bumps `coroutineVersion` from 1.4.2 to 1.4.3-native-mt.

Updates `kotlinx-coroutines-core` from 1.4.2 to 1.4.3-native-mt
- [Release notes](https://github.com/Kotlin/kotlinx.coroutines/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.coroutines/blob/master/CHANGES.md)
- [Commits](https://github.com/Kotlin/kotlinx.coroutines/commits)

Updates `kotlinx-coroutines-jdk8` from 1.4.2 to 1.4.3-native-mt
- [Release notes](https://github.com/Kotlin/kotlinx.coroutines/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.coroutines/blob/master/CHANGES.md)
- [Commits](https://github.com/Kotlin/kotlinx.coroutines/commits)

Updates `kotlinx-coroutines-test` from 1.4.2 to 1.4.3-native-mt
- [Release notes](https://github.com/Kotlin/kotlinx.coroutines/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.coroutines/blob/master/CHANGES.md)
- [Commits](https://github.com/Kotlin/kotlinx.coroutines/commits)

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

build.gradle.kts

@@ -20,7 +20,7 @@ dependencies {
     implementation(kotlin("test"))
     implementation(kotlin("test-junit"))
 
-    val coroutineVersion = "1.4.2"
+    val coroutineVersion = "1.4.3-native-mt"
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutineVersion")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-jdk8:$coroutineVersion")
     testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:$coroutineVersion")