Bump org.wiremock:wiremock-standalone from 3.8.0 to 3.9.1

Bumps [org.wiremock:wiremock-standalone](https://github.com/wiremock/wiremock) from 3.8.0 to 3.9.1.
- [Release notes](https://github.com/wiremock/wiremock/releases)
- [Commits](wiremock/wiremock@3.8.0...3.9.1)

---
updated-dependencies:
- dependency-name: org.wiremock:wiremock-standalone
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

part2.2-rest/build.gradle

@@ -25,7 +25,7 @@ dependencies {
     testImplementation project(':commons')
     testImplementation project(':commons-rest')
     testImplementation 'org.spockframework:spock-spring:2.4-M4-groovy-4.0'
-    testImplementation 'org.wiremock:wiremock-standalone:3.8.0'
+    testImplementation 'org.wiremock:wiremock-standalone:3.9.1'
 }
 
 test {