Bump org.assertj:assertj-core from 3.26.0 to 3.26.3 (#3843)

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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

gradle/dependencies.gradle

@@ -2,7 +2,7 @@ ext {
     // Library versions that Dependabot will monitor (in alphabetical order)
     // See also gradle/libs.versions.toml for manually maintained dependencies and Gradle plugins
     archUnitVersion = "0.23.1"
-    assertjVersion = "3.26.0"
+    assertjVersion = "3.26.3"
     awaitilityVersion = "4.2.1"
     blockhoundVersion = "1.0.9.RELEASE"
     byteBuddyVersion = "1.14.18"