(2.1.x): Bump org.wiremock:wiremock-standalone from 3.0.3 to 3.0.4 (#855)

Bumps [org.wiremock:wiremock-standalone](https://github.com/wiremock/wiremock) from 3.0.3 to 3.0.4.
- [Release notes](https://github.com/wiremock/wiremock/releases)
- [Commits](https://github.com/wiremock/wiremock/compare/3.0.3...3.0.4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -24,7 +24,7 @@ buildscript {
 		immutablesVersion = "2.9.3"
 		openServiceBrokerVersion = "4.0.0"
 		springFrameworkVersion = "6.0.0"
-		wiremockVersion = "3.0.3"
+		wiremockVersion = "3.0.4"
 	}
 }