Upgrade to Spring Boot 4 #1545
Description
Action items and breaking changes for Spring Boot 4:
- Migrate to Spring Boot 4 -> Chore/migrate to spring boot 4 #1550
- Resolve Use OpenAPI 3.1 fields #1487
- Resolve UI publish endpoint fails when spring.jackson.property-naming-strategy=SNAKE_CASE (payload fields generated in camelCase) #1535 -> fix(core): allow to publish with different jackson naming strategies #1563
- Address maintainer notes in source code comments
- Rename branch master to main -> chore: migrate to branch main #1551