chore(deps): update dependency org.assertj:assertj-core to v3.26.0

Author: renovate[bot]

pom/pom.xml

@@ -25,7 +25,7 @@
         <!-- Test dependencies -->
         <junit.version>5.10.2</junit.version>
         <mockito.version>5.11.0</mockito.version>
-        <assertj-core.version>3.25.3</assertj-core.version>
+        <assertj-core.version>3.26.0</assertj-core.version>
         <jaxb.impl.version>2.4.0-b180830.0438</jaxb.impl.version>
         <istack.version>3.0.12</istack.version>
         <log4j.version>2.23.1</log4j.version>