[bot][7.67.x]: Bump version.org.springframework.boot

Bumps `version.org.springframework.boot` from 2.5.15 to 3.2.1.

Updates `org.springframework.boot:spring-boot-dependencies` from 2.5.15 to 3.2.1
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.15...v3.2.1)

Updates `org.springframework.boot:spring-boot-maven-plugin` from 2.5.15 to 3.2.1
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.15...v3.2.1)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.springframework.boot:spring-boot-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

optaplanner-quickstarts/spring-boot-school-timetabling/pom.xml

@@ -12,7 +12,7 @@
   <properties>
     <version.org.optaplanner>7.67.1-SNAPSHOT</version.org.optaplanner>
     <version.org.yaml.snakeyaml>2.0</version.org.yaml.snakeyaml>
-    <version.org.springframework.boot>2.5.15</version.org.springframework.boot>
+    <version.org.springframework.boot>3.2.1</version.org.springframework.boot>
     <version.org.webjars.webjars-locator>0.37</version.org.webjars.webjars-locator>
     <version.org.webjars.bootstrap>4.3.1</version.org.webjars.bootstrap>
     <version.org.webjars.font-awesome>5.11.2</version.org.webjars.font-awesome>