Bump net.javacrumbs.json-unit:json-unit from 2.40.0 to 4.0.0

Bumps [net.javacrumbs.json-unit:json-unit](https://github.com/lukas-krecan/JsonUnit) from 2.40.0 to 4.0.0.
- [Changelog](https://github.com/lukas-krecan/JsonUnit/blob/master/RELEASES.md)
- [Commits](lukas-krecan/JsonUnit@json-unit-parent-2.40.0...json-unit-parent-4.0.0)

---
updated-dependencies:
- dependency-name: net.javacrumbs.json-unit:json-unit
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

build.gradle

@@ -86,7 +86,7 @@ dependencies {
   testImplementation "junit:junit:4.13.2"
   testImplementation "org.mockito:mockito-core:3.12.4"
   testImplementation "org.hamcrest:hamcrest-all:1.3"
-  testImplementation "net.javacrumbs.json-unit:json-unit:2.40.0"
+  testImplementation "net.javacrumbs.json-unit:json-unit:4.0.0"
 
   lesscss "org.mozilla:rhino:1.7.15"
 }