(4.0.x): Bump org.springframework.boot from 4.0.3 to 4.0.4

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 4.0.3 to 4.0.4.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.0.3...v4.0.4)

---
updated-dependencies:
- dependency-name: org.springframework.boot
  dependency-version: 4.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

settings.gradle

@@ -16,7 +16,7 @@
 
 pluginManagement {
 	plugins {
-		id 'org.springframework.boot' version '4.0.3'
+		id 'org.springframework.boot' version '4.0.4'
 		id 'io.spring.nohttp' version '0.0.11'
 		id 'io.spring.javaformat' version '0.0.47'
 		id 'org.asciidoctor.jvm.convert' version '4.0.5'