Update dependency io.projectreactor:reactor-test to v3.7.1 (#2368)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

build.gradle

@@ -477,7 +477,7 @@ dependencies {
   }
   testImplementation group: 'org.springframework.cloud', name: 'spring-cloud-starter-contract-stub-runner', version: '4.1.5'
   testImplementation 'org.junit.jupiter:junit-jupiter:5.11.3'
-  testImplementation group: 'io.projectreactor', name: 'reactor-test', version: '3.7.0'
+  testImplementation group: 'io.projectreactor', name: 'reactor-test', version: '3.7.1'
   testImplementation 'org.springframework.security:spring-security-test:6.4.1'
 
   // https://mvnrepository.com/artifact/org.awaitility/awaitility