Bump org.assertj:assertj-core from 3.26.0 to 3.26.3 (#347)

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.26.0 to 3.26.3.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.26.0...assertj-build-3.26.3)

---
updated-dependencies:
- dependency-name: org.assertj:assertj-core
  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

@@ -29,7 +29,7 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter:5.10.3'
     testImplementation 'org.mockito:mockito-junit-jupiter:5.12.0'
     testImplementation 'org.awaitility:awaitility:4.2.1'
-    testImplementation 'org.assertj:assertj-core:3.26.0'
+    testImplementation 'org.assertj:assertj-core:3.26.3'
     testImplementation('net.jradius:jradius-core:1.1.5') {
         transitive = false // for reference implementation of hashing utilities
     }