Bump org.skyscreamer:jsonassert from 1.5.1 to 1.5.3

Bumps [org.skyscreamer:jsonassert](https://github.com/skyscreamer/JSONassert) from 1.5.1 to 1.5.3.
- [Release notes](https://github.com/skyscreamer/JSONassert/releases)
- [Changelog](https://github.com/skyscreamer/JSONassert/blob/master/CHANGELOG.md)
- [Commits](skyscreamer/JSONassert@jsonassert-1.5.1...jsonassert-1.5.3)

---
updated-dependencies:
- dependency-name: org.skyscreamer:jsonassert
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build.gradle

@@ -75,7 +75,7 @@ dependencies {
   testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.12.0'
   testImplementation group: 'org.jsoup', name: 'jsoup', version: '1.17.2'
   testImplementation project.deps.gocdPluginApi
-  testImplementation group: 'org.skyscreamer', name: 'jsonassert', version: '1.5.1'
+  testImplementation group: 'org.skyscreamer', name: 'jsonassert', version: '1.5.3'
   testImplementation 'uk.org.webcompere:system-stubs-jupiter:2.1.6'
 }