(v4.5.x): Bump org.springframework.boot from 3.5.0 to 3.5.3

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 3.5.0 to 3.5.3.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.0...v3.5.3)

---
updated-dependencies:
- dependency-name: org.springframework.boot
  dependency-version: 3.5.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

settings.gradle

@@ -23,7 +23,7 @@ pluginManagement {
 		}
 	}
 	plugins {
-		id "org.springframework.boot" version "3.5.0"
+		id "org.springframework.boot" version "3.5.3"
 		id "io.spring.nohttp" version "0.0.11"
 		id "io.spring.javaformat" version "0.0.46"
 		id 'org.asciidoctor.jvm.pdf'