Update dependency com.jcabi:jcabi-matchers to v1.6.0

Author: renovate[bot]

pom.xml

@@ -140,7 +140,7 @@ OF THE POSSIBILITY OF SUCH DAMAGE.
       -->
       <groupId>com.jcabi</groupId>
       <artifactId>jcabi-matchers</artifactId>
-      <version>1.5.3</version>
+      <version>1.6.0</version>
       <scope>provided</scope>
       <optional>true</optional>
     </dependency>