Migrate digiwf-task to Spring Boot 3

[lmoesle]

Migrate digiwf-task to Spring Boot 3 (see Migration Guide).

Todo

• Upgrade Spring Boot
• Upgrade Spring Security
• Configure Properties
  • Use the spring-boot-properties-migrator module to detect props that changed
• Rename spring.factories to META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
• Upgrade Dependencies
  • https://github.com/it-at-m/digiwf-core/pull/748
  • https://github.com/it-at-m/digiwf-core/pull/679

Additional Context

• Remove @ConstructionBinding https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-3.0-Migration-Guide#constructingbinding-no-longer-needed-at-the-type-level
• Flyway https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-3.0-Migration-Guide#flyway

[darenegade]

Hey team! Please add your planning poker estimate with Zenhub @dominikhorn93 @lehju @lmoesle @StephanStrehlerCGI

[darenegade]

Please add your planning poker estimate with Zenhub @darenegade

[zambrovski]

Deactivated tests:

• UserGroupResolverIntegrationTest