Gradle: Bump org.jetbrains.kotlin:kotlin-bom from 2.0.21 to 2.2.20

Bumps [org.jetbrains.kotlin:kotlin-bom](https://github.com/JetBrains/kotlin) from 2.0.21 to 2.2.20.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.21...v2.2.20)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-bom
  dependency-version: 2.2.20
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

build.gradle.kts

@@ -187,7 +187,7 @@ val testContainersLocalStackVersion = "1.21.3"
 
 dependencies {
   // https://youtrack.jetbrains.com/issue/KT-71057/POM-file-unusable-after-upgrading-to-2.0.20-from-2.0.10
-  implementation(platform("org.jetbrains.kotlin:kotlin-bom:2.0.21"))
+  implementation(platform("org.jetbrains.kotlin:kotlin-bom:2.2.20"))
   implementation(platform(org.springframework.boot.gradle.plugin.SpringBootPlugin.BOM_COORDINATES))
 
   detekt("io.gitlab.arturbosch.detekt:detekt-cli:$detektVersion")