Bump org.assertj:assertj-core from 3.25.1 to 3.25.3 in /modules/pulsar

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.25.1 to 3.25.3.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.25.1...assertj-build-3.25.3)

---
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]>

Author: dependabot[bot]

modules/pulsar/build.gradle

@@ -4,6 +4,6 @@ dependencies {
     api project(':testcontainers')
 
     testImplementation group: 'org.apache.pulsar', name: 'pulsar-client', version: '3.2.3'
-    testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.25.1'
+    testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.25.3'
     testImplementation group: 'org.apache.pulsar', name: 'pulsar-client-admin', version: '3.2.3'
 }