Bump org.assertj:assertj-core from 3.25.3 to 3.26.3

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.25.3 to 3.26.3.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](https://github.com/assertj/assertj/compare/assertj-build-3.25.3...assertj-build-3.26.3)

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

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -466,7 +466,7 @@
       <artifactId>assertj-core</artifactId>
       <scope>test</scope>
       <!-- we need to use the same version as in jclouds because we pull in their tests -->
-      <version>3.25.3</version>
+      <version>3.26.3</version>
     </dependency>
     <dependency>
       <groupId>org.eclipse.jetty</groupId>