upgrade dependencies, don't switch to junit5 as Theories are not supported

Author: JasperGeurtz

pom.xml

@@ -49,14 +49,14 @@
         <dependency>
             <groupId>net.java.dev.jna</groupId>
             <artifactId>jna</artifactId>
-            <version>5.1.0</version>
+            <version>5.2.0</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/net.java.dev.jna/jna-platform -->
         <dependency>
             <groupId>net.java.dev.jna</groupId>
             <artifactId>jna-platform</artifactId>
-            <version>5.1.0</version>
+            <version>5.2.0</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/junit/junit -->
@@ -71,14 +71,15 @@
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-            <version>2.23.4</version>
+            <version>2.26.0</version>
             <scope>test</scope>
         </dependency>
 
+        <!-- https://mvnrepository.com/artifact/org.assertj/assertj-core -->
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.11.1</version>
+            <version>3.12.2</version>
             <scope>test</scope>
         </dependency>
     </dependencies>