Bump org.jetbrains.kotlin:kotlin-bom from 2.0.20 to 2.0.21 (#1187)

Bumps [org.jetbrains.kotlin:kotlin-bom](https://github.com/JetBrains/kotlin) from 2.0.20 to 2.0.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.0.21/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20...v2.0.21)

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

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

pom.xml

@@ -83,7 +83,7 @@
         <jsonassert.version>1.5.3</jsonassert.version>
         <jsch.version>0.1.55</jsch.version>
         <jsr305.version>3.0.2</jsr305.version>
-        <kotlin.version>2.0.20</kotlin.version>
+        <kotlin.version>2.0.21</kotlin.version>
         <liquibase.version>4.29.2</liquibase.version>
         <logback-access-1_x.version>1.4.14</logback-access-1_x.version>
         <logback-access-2_x.version>2.0.3</logback-access-2_x.version>