Bump org.assertj:assertj-core

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.25.3 to 3.26.0.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.25.3...assertj-build-3.26.0)

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

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

Author: dependabot[bot]

deps/rabbitmq_mqtt/test/java_SUITE_data/pom.xml

@@ -17,7 +17,7 @@
     <paho.v3.version>[1.2.5,)</paho.v3.version>
     <amqp-client.version>5.21.0</amqp-client.version>
     <junit.version>5.10.2</junit.version>
-    <assertj.version>3.25.3</assertj.version>
+    <assertj.version>3.26.0</assertj.version>
     <logback.version>1.2.13</logback.version>
     <maven-surefire-plugin.version>3.2.5</maven-surefire-plugin.version>
     <groovy-maven-plugin.version>2.1.1</groovy-maven-plugin.version>