Bump org.springframework:spring-test from 6.1.8 to 6.1.9

Bumps [org.springframework:spring-test](https://github.com/spring-projects/spring-framework) from 6.1.8 to 6.1.9.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.8...v6.1.9)

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

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

pom.xml

@@ -65,7 +65,7 @@
     <apache.commons.io>2.16.1</apache.commons.io>
     <common.codec.version>1.17.0</common.codec.version>
     <spring.boot.version>3.3.0</spring.boot.version>
-    <spring.version>6.1.8</spring.version>
+    <spring.version>6.1.9</spring.version>
     <prometheus.client.version>0.16.0</prometheus.client.version>
     <reflections.version>0.10.2</reflections.version>