SpringBoot Upgrade to Spring Framework 6.0.2

Let's upgrade to the first maintenance version of Spring Framework 6.0.

See https://github.com/spring-projects/spring-framework/milestone/309

Comment From: snicoll

reopening to upgrade to 6.0.2 instead

Comment From: Hyperion-v

Could this delay the release？

Comment From: mmaryo

hope not :)

Comment From: adrogon

༼ つ ◕◕ ༽つ @snicoll TAKE MY ENERGY ༼ つ ◕◕ ༽つ

Comment From: l33the

its completed FINALLLY HELL YEAH LETS UPLOAD THIS I WANT TO USE

Comment From: l33the

No more accidentally installing Tomcat 10 and then downgrading because of it not being compatible