CI uses setup-gradle for all builds

update CI

upgrade SB 3.4.2

update README

use TestSocketUtils.findAvailableTcpPort

dependencies upgrade

fix GracefulShutdownIT

Update Spring Boot version to 3.3.5 (#57)

* Update Spring Boot version to 3.3.5

* optimize pre-commit

* add org.gradle.parallel=true & org.gradle.caching=true

* update s/{/\\{/g

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Co-authored-by: DanielLiu1123 <62151295+DanielLiu1123@users.noreply.github.com>
Co-authored-by: Freeman Liu <llw599502537@gmail.com>

Release 3.3.4

Release 3.3.3