build(deps): bump org.jetbrains.kotlin.plugin.jpa in /11_flow/server

Bumps [org.jetbrains.kotlin.plugin.jpa](https://github.com/JetBrains/kotlin) from 2.0.10 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@v2.0.10...v2.0.21)

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

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

11_flow/server/build.gradle.kts

@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 plugins {
  id("org.springframework.boot") version "3.3.2"
  id("io.spring.dependency-management") version "1.1.5"
- id("org.jetbrains.kotlin.plugin.jpa") version "2.0.10"
+ id("org.jetbrains.kotlin.plugin.jpa") version "2.0.21"
  kotlin("jvm") version "2.0.10"
  kotlin("plugin.spring") version "2.0.10"
 }