Bump the gradle group across 1 directory with 3 updates

Bumps the gradle group with 3 updates in the / directory: org.flywaydb:flyway-database-postgresql, org.apache.kafka:kafka-streams and [org.testcontainers:postgresql](https://github.com/testcontainers/testcontainers-java).


Updates `org.flywaydb:flyway-database-postgresql` from 10.15.2 to 10.17.0

Updates `org.apache.kafka:kafka-streams` from 3.7.1 to 3.8.0

Updates `org.testcontainers:postgresql` from 1.19.8 to 1.20.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.8...1.20.1)

---
updated-dependencies:
- dependency-name: org.flywaydb:flyway-database-postgresql
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
- dependency-name: org.apache.kafka:kafka-streams
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
- dependency-name: org.testcontainers:postgresql
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
...

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

build.gradle.kts

@@ -2,7 +2,7 @@ import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 
 val mainClass = "no.nav.k9.los.K9LosKt"
 val hikariVersion = "5.1.0"
-val flywayVersion = "10.15.2"
+val flywayVersion = "10.17.0"
 val vaultJdbcVersion = "1.3.10"
 val koinVersion = "3.5.6"
 val kotliqueryVersion = "1.9.0"
@@ -14,12 +14,12 @@ val commonsTextVersion = "1.12.0"
 
 val dusseldorfKtorVersion = "5.0.3"
 val ktorVersion = "2.3.12"
-val kafkaVersion = "3.7.1"
+val kafkaVersion = "3.8.0"
 
 val navTilgangskontroll = "3.2024.01.24_10.14-f70bae69bd65"
 
 // Test Dependencies
-val testContainers = "1.19.8"
+val testContainers = "1.20.1"
 val jsonassertVersion = "1.5.3"
 val jupiterVersion = "5.10.3"
 val assertkVersion = "0.28.1"