Bump assertj-core from 3.19.0 to 3.20.2

Bumps [assertj-core](https://github.com/assertj/assertj-core) from 3.19.0 to 3.20.2.
- [Release notes](https://github.com/assertj/assertj-core/releases)
- [Commits](assertj/assertj@assertj-core-3.19.0...assertj-core-3.20.2)

---
updated-dependencies:
- dependency-name: org.assertj:assertj-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -36,7 +36,7 @@ dependencies {
     api "org.mockito:mockito-core:$mockitoVersion"
     api "org.testng:testng:7.4.0"
 
-    testImplementation "org.assertj:assertj-core:3.19.0"
+    testImplementation "org.assertj:assertj-core:3.20.2"
     testImplementation "org.mockito:mockito-inline:$mockitoVersion"
 }