Bump com.github.kagkarlsson:db-scheduler in /service

Bumps [com.github.kagkarlsson:db-scheduler](https://github.com/kagkarlsson/db-scheduler) from 15.0.0 to 15.1.1.
- [Release notes](https://github.com/kagkarlsson/db-scheduler/releases)
- [Changelog](https://github.com/kagkarlsson/db-scheduler/blob/master/jreleaser.yml)
- [Commits](https://github.com/kagkarlsson/db-scheduler/commits)

---
updated-dependencies:
- dependency-name: com.github.kagkarlsson:db-scheduler
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

service/evaka-bom/build.gradle.kts

@@ -13,7 +13,7 @@ dependencies {
             "org.apache.tomcat:tomcat-catalina:10.1.31"
         ) // ch.qos.logback.access:tomcat breaks on runtime without this
         api("com.auth0:java-jwt:4.4.0")
-        api("com.github.kagkarlsson:db-scheduler:15.0.0")
+        api("com.github.kagkarlsson:db-scheduler:15.1.1")
         api(libs.fuel)
         api(libs.fuel.jackson)
         api("com.google.guava:guava:33.3.0-jre")