Bump kotlin.version from 1.9.23 to 2.0.0

Bumps `kotlin.version` from 1.9.23 to 2.0.0.

Updates `org.jetbrains.kotlin:kotlin-stdlib` from 1.9.23 to 2.0.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.0.0/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.23...v2.0.0)

Updates `org.jetbrains.kotlin:kotlin-reflect` from 1.9.23 to 2.0.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.0.0/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.23...v2.0.0)

Updates `org.jetbrains.kotlin:kotlin-test-junit5` from 1.9.23 to 2.0.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.0.0/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.23...v2.0.0)

Updates `org.jetbrains.kotlin:kotlin-maven-allopen` from 1.9.23 to 2.0.0

Updates `org.jetbrains.kotlin:kotlin-maven-plugin` from 1.9.23 to 2.0.0

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-stdlib
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.jetbrains.kotlin:kotlin-reflect
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.jetbrains.kotlin:kotlin-test-junit5
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: org.jetbrains.kotlin:kotlin-maven-allopen
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.jetbrains.kotlin:kotlin-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

pom.xml

@@ -19,7 +19,7 @@
         <sha1/>
         <changelist>-SNAPSHOT</changelist>
         <jvmTarget>21</jvmTarget>
-        <kotlin.version>1.9.23</kotlin.version>
+        <kotlin.version>2.0.0</kotlin.version>
         <main-class>no.nav.familie.oppdrag.LauncherKt</main-class>
         <felles.version>3.20240515152313_9dd5659</felles.version>
         <kontrakter.version>3.0_20240506120136_2e7f6d9</kontrakter.version>