Bump org.springframework.boot:spring-boot-test

Bumps [org.springframework.boot:spring-boot-test](https://github.com/spring-projects/spring-boot) from 2.3.12.RELEASE to 3.1.5.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.3.12.RELEASE...v3.1.5)

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

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

dc-commons-file/pom.xml

@@ -78,7 +78,7 @@
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-test</artifactId>
-      <version>2.3.12.RELEASE</version>
+      <version>3.1.5</version>
       <scope>test</scope>
     </dependency>
     <dependency>

dc-commons-springboot/pom.xml

@@ -98,7 +98,7 @@
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-test</artifactId>
-      <version>2.3.12.RELEASE</version>
+      <version>3.1.5</version>
       <scope>test</scope>
     </dependency>
     <dependency>

dc-commons-springsecurity/pom.xml

@@ -99,7 +99,7 @@
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-test</artifactId>
-      <version>2.3.12.RELEASE</version>
+      <version>3.1.5</version>
       <scope>test</scope>
     </dependency>
     <dependency>