build(deps): bump org.springframework.boot from 2.7.3 to 2.7.4

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 2.7.3 to 2.7.4.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.3...v2.7.4)

---
updated-dependencies:
- dependency-name: org.springframework.boot
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id 'org.springframework.boot' version '2.7.3'
+    id 'org.springframework.boot' version '2.7.4'
     id 'io.spring.dependency-management' version '1.0.14.RELEASE'
     id 'java'
     id 'io.github.itzg.simple-boot-image' version '0.5.1'