Bump org.springframework.boot from 3.2.0 to 3.2.1 in /java/gradle (#664)

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 3.2.0 to 3.2.1.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.2.0...v3.2.1)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Daniel Mikusa <[email protected]>

java/gradle/build.gradle

@@ -1,6 +1,6 @@
 plugins {
 	id 'java'
-	id 'org.springframework.boot' version '3.2.0'
+	id 'org.springframework.boot' version '3.2.1'
 	id 'io.spring.dependency-management' version '1.1.4'
 }