Bump org.jetbrains.kotlin:kotlin-stdlib in /data-prepper-plugins/s3-sink

Bumps [org.jetbrains.kotlin:kotlin-stdlib](https://github.com/JetBrains/kotlin) from 1.8.21 to 1.9.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.8.21...v1.9.21)

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

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

data-prepper-plugins/s3-sink/build.gradle

@@ -16,13 +16,13 @@ dependencies {
     implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-csv'
     implementation 'software.amazon.awssdk:s3'
     implementation 'software.amazon.awssdk:sts'
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.8.21'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.9.21'
     implementation project(':data-prepper-plugins:avro-codecs')
     implementation libs.avro.core
     implementation libs.hadoop.common
     implementation 'org.apache.parquet:parquet-avro:1.13.1'
     implementation 'software.amazon.awssdk:apache-client'
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-common:1.8.21'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib-common:1.9.21'
     implementation libs.commons.lang3
     testImplementation project(':data-prepper-test-common')
     testImplementation project(':data-prepper-plugins:parquet-codecs')