Bump kotlin-stdlib-jdk8 from 1.4.0 to 1.6.10 in /kotlin/junit

Bumps [kotlin-stdlib-jdk8](https://github.com/JetBrains/kotlin) from 1.4.0 to 1.6.10.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.4.0...v1.6.10)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-stdlib-jdk8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

kotlin/junit/build.gradle.kts

@@ -8,7 +8,7 @@ repositories {
 }
 
 dependencies {
-    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.20")
     testImplementation("org.jetbrains.kotlin:kotlin-test:1.7.10")
     testImplementation("org.junit.jupiter:junit-jupiter-api:5.8.2")
 }