Upgrade to Jackson 3.0 and Spring Boot 4.0

[retrodaredevil]

One of these days I'll get around to doing this upgrade. With OpenRewrite in place, we should check these out when doing the upgrade. While doing this upgrade also upgrade to Spring Boot 4.0

• https://docs.openrewrite.org/recipes/java/jackson
  • https://docs.openrewrite.org/recipes/java/jackson/upgradejackson_2_3
• https://docs.openrewrite.org/recipes/java/spring/boot4/upgradespringboot_4_0-community-edition