Bump org.jetbrains.kotlin:kotlin-stdlib from 1.8.20 to 1.8.21 (opensearch-project#2610)

Bumps [org.jetbrains.kotlin:kotlin-stdlib](https://github.com/JetBrains/kotlin) from 1.8.20 to 1.8.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.8.20...v1.8.21)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

data-prepper-plugins/mapdb-processor-state/build.gradle

@@ -15,8 +15,8 @@ dependencies {
     implementation project(':data-prepper-api')
     implementation project(':data-prepper-plugins:common')
     implementation 'org.mapdb:mapdb:3.0.8'
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.8.20'
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-common:1.8.20'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.8.21'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib-common:1.8.21'
     testImplementation testLibs.junit.vintage
     testImplementation project(':data-prepper-plugins:common').sourceSets.test.output
     testImplementation 'junit:junit:4.13.2'

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

@@ -15,8 +15,8 @@ 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:1.7.10'
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-common:1.7.10'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.8.21'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib-common:1.8.21'
     implementation 'org.apache.commons:commons-lang3:3.12.0'
     testImplementation project(':data-prepper-test-common')
 }