Bump org.jetbrains.kotlin:kotlin-bom from 2.2.20 to 2.2.21

Bumps [org.jetbrains.kotlin:kotlin-bom](https://github.com/JetBrains/kotlin) from 2.2.20 to 2.2.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.2.20...v2.2.21)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-bom
  dependency-version: 2.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

bom/application/pom.xml

@@ -152,7 +152,7 @@
         <cloudevents-api.version>3.0.0</cloudevents-api.version>
         <azure-functions-java-library.version>3.2.1</azure-functions-java-library.version>
         <azure-functions-java-spi.version>1.1.0</azure-functions-java-spi.version>
-        <kotlin.version>2.2.20</kotlin.version>
+        <kotlin.version>2.2.21</kotlin.version>
         <kotlin.coroutine.version>1.10.2</kotlin.coroutine.version>
         <kotlin-serialization.version>1.9.0</kotlin-serialization.version>
         <azure.toolkit-lib.version>0.53.0</azure.toolkit-lib.version>