chore(deps): Bump org.wiremock:wiremock-standalone from 3.3.1 to 3.9.1

Bumps [org.wiremock:wiremock-standalone](https://github.com/wiremock/wiremock) from 3.3.1 to 3.9.1.
- [Release notes](https://github.com/wiremock/wiremock/releases)
- [Commits](wiremock/wiremock@3.3.1...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]>

subscription-service/build.gradle.kts

@@ -30,7 +30,7 @@ dependencies {
     runtimeOnly("org.flywaydb:flyway-database-postgresql")
     runtimeOnly("org.postgresql:postgresql")
 
-    testImplementation("org.wiremock:wiremock-standalone:3.3.1")
+    testImplementation("org.wiremock:wiremock-standalone:3.9.1")
     testImplementation("org.testcontainers:postgresql")
     testImplementation("org.testcontainers:r2dbc")
     testImplementation(testFixtures(project(":shared")))