Bump org.assertj:assertj-core from 3.11.1 to 3.26.3

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.11.1 to 3.26.3.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-core-3.11.1...assertj-build-3.26.3)

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

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

build.gradle

@@ -88,5 +88,5 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter-api'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine'
     testImplementation 'org.mockito:mockito-junit-jupiter:3.3.3'
-    testImplementation 'org.assertj:assertj-core:3.11.1'
+    testImplementation 'org.assertj:assertj-core:3.26.3'
 }