build(deps): bump org.springframework.boot:spring-boot-autoconfigure

Bumps [org.springframework.boot:spring-boot-autoconfigure](https://github.com/spring-projects/spring-boot) from 4.0.2 to 4.0.6.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.0.2...v4.0.6)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-autoconfigure
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gateway/gradle/libs.versions.toml

@@ -6,7 +6,7 @@ jackson = "2.21.0"
 junit-jupiter = "5.14.2"
 assertj = "3.27.7"
 spring-context = "6.2.15"
-spring-boot = "4.0.2"
+spring-boot = "4.0.6"
 spring-webflux = "6.2.15"
 reactor-netty = "1.2.6"
 testcontainers = "2.0.3"