Bump the backend group with 4 updates

Bumps the backend group with 4 updates: [org.springframework.boot:spring-boot-starter-parent](https://github.com/spring-projects/spring-boot), [org.springframework.boot:spring-boot-dependencies](https://github.com/spring-projects/spring-boot), [org.springframework.boot:spring-boot-maven-plugin](https://github.com/spring-projects/spring-boot) and [com.github.eirslett:frontend-maven-plugin](https://github.com/eirslett/frontend-maven-plugin).


Updates `org.springframework.boot:spring-boot-starter-parent` from 3.1.6 to 3.2.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.1.6...v3.2.0)

Updates `org.springframework.boot:spring-boot-dependencies` from 3.1.6 to 3.2.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.1.6...v3.2.0)

Updates `org.springframework.boot:spring-boot-maven-plugin` from 3.1.6 to 3.2.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.1.6...v3.2.0)

Updates `com.github.eirslett:frontend-maven-plugin` from 1.14.2 to 1.15.0
- [Changelog](https://github.com/eirslett/frontend-maven-plugin/blob/master/CHANGELOG.md)
- [Commits](eirslett/frontend-maven-plugin@frontend-plugins-1.14.2...frontend-plugins-1.15.0)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-starter-parent
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend
- dependency-name: org.springframework.boot:spring-boot-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend
- dependency-name: com.github.eirslett:frontend-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend
...

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

pom.xml

@@ -6,7 +6,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>3.1.6</version>
+    <version>3.2.0</version>
     <relativePath/><!-- lookup parent from repository -->
   </parent>
 
@@ -38,12 +38,12 @@
     <maven.compiler.release>17</maven.compiler.release>
 
     <!-- maven plugin versions -->
-    <maven-frontend-plugin.version>1.14.2</maven-frontend-plugin.version>
+    <maven-frontend-plugin.version>1.15.0</maven-frontend-plugin.version>
     <maven-wrapper-plugin.version>3.2.0</maven-wrapper-plugin.version>
     <jacoco-maven-plugin.version>0.8.11</jacoco-maven-plugin.version>
 
     <!-- 3rd-party library versions -->
-    <spring-boot-bom.version>3.1.6</spring-boot-bom.version>
+    <spring-boot-bom.version>3.2.0</spring-boot-bom.version>
     <junixsocket.version>2.8.3</junixsocket.version>
     <flyway.version>9.22.3</flyway.version>
     <artemis.version>2.31.2</artemis.version>