Bump org.springframework.boot:spring-boot-starter-test in /examples

Bumps [org.springframework.boot:spring-boot-starter-test](https://github.com/spring-projects/spring-boot) from 3.3.5 to 3.4.0.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.3.5...v3.4.0)

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

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

examples/aspectj/weaving/build.gradle

@@ -37,7 +37,7 @@ dependencies {
     implementation localGroovy()
 
     testImplementation "junit:junit:4.13.2"
-    implementation "org.springframework.boot:spring-boot-starter-test:3.3.5"
+    implementation "org.springframework.boot:spring-boot-starter-test:3.4.0"
 }
 
 configurations.testImplementation.extendsFrom(configurations.jacocoAnt)