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

Bumps [org.springframework.boot:spring-boot-dependencies](https://github.com/spring-projects/spring-boot) from 3.1.2 to 3.1.5.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.1.2...v3.1.5)

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

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

build.gradle

@@ -33,7 +33,7 @@ if (javafxPlatform == "unspecified") {
 println "Platform is: ${javafxPlatform}"
 
 dependencies {
-    def springBootVersion = "3.1.2"
+    def springBootVersion = "3.1.5"
     def mapStructVersion = "1.5.5.Final"
     def commonsVersion = "9a877cee8c77ea89f35995c326702c173036e048"