Revert "Upgrade to Spring Boot 3.0.0-M4"
Revert "Upgrade to Spring Boot 3.0.0-M4"

This reverts commit 03a1206b2bbca5267de29e6801bb8af713d0bcc6.

in28minutes/in28minutes.github.io,in28minutes/in28minutes.github.io,in28minutes/in28minutes.github.io