build(deps): bump org.springframework.boot

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 3.3.0 to 3.3.1.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.3.0...v3.3.1)

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

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

assets/credhub-enabled-app/build.gradle

@@ -1,6 +1,6 @@
 plugins {
     id 'java'
-    id 'org.springframework.boot' version '3.3.0'
+    id 'org.springframework.boot' version '3.3.1'
     id 'io.spring.dependency-management' version '1.1.5'
 }