chore(docker): upgrade tomcat version to the 8.5.68 (#357)

Closes [RUNTIME-315](https://bonitasoft.atlassian.net/browse/RUNTIME-315)

pom.xml

@@ -27,8 +27,8 @@
         <bonita.web.version>${project.version}</bonita.web.version>
         <bonita.engine.version>${project.version}</bonita.engine.version>
 
-        <tomcat.version>8.5.59</tomcat.version>
-        <tomcat9.version>9.0.39</tomcat9.version>
+        <tomcat.version>8.5.68</tomcat.version>
+        <tomcat9.version>9.0.48</tomcat9.version>
         <slf4j.version>1.7.25</slf4j.version>
 
         <deploy_plugin_skip>false</deploy_plugin_skip>