Bump org.apache.pulsar:pulsar-bom from 3.3.1 to 4.0.3 in /modules/pulsar

Bumps [org.apache.pulsar:pulsar-bom](https://github.com/apache/pulsar) from 3.3.1 to 4.0.3.
- [Release notes](https://github.com/apache/pulsar/releases)
- [Commits](apache/pulsar@v3.3.1...v4.0.3)

---
updated-dependencies:
- dependency-name: org.apache.pulsar:pulsar-bom
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

modules/pulsar/build.gradle

@@ -3,7 +3,7 @@ description = "Testcontainers :: Pulsar"
 dependencies {
     api project(':testcontainers')
 
-    testImplementation platform("org.apache.pulsar:pulsar-bom:3.3.1")
+    testImplementation platform("org.apache.pulsar:pulsar-bom:4.0.3")
     testImplementation 'org.apache.pulsar:pulsar-client'
     testImplementation 'org.apache.pulsar:pulsar-client-admin'
     testImplementation 'org.assertj:assertj-core:3.26.3'