upgrade assertj-core version to 3.5.2

Author: fmbenhassine

pom.xml

@@ -109,7 +109,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.4.1</version>
+            <version>3.5.2</version>
             <scope>test</scope>
         </dependency>
     </dependencies>