build(deps): bump spring.version from 6.1.4 to 6.1.5

Bumps `spring.version` from 6.1.4 to 6.1.5.

Updates `org.springframework:spring-webmvc` from 6.1.4 to 6.1.5
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.4...v6.1.5)

Updates `org.springframework:spring-test` from 6.1.4 to 6.1.5
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.4...v6.1.5)

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

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

pom.xml

@@ -495,7 +495,7 @@
     <!-- Encoding UTF-8 -->
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <jackson2-version>2.16.2</jackson2-version>
-    <spring.version>6.1.4</spring.version>
+    <spring.version>6.1.5</spring.version>
     <jacoco.version>0.8.11</jacoco.version>
     <antlr-version>4.13.1</antlr-version>
     <mockito.version>5.11.0</mockito.version>