Upgrade tomcat 9.0.31

Author: slandelle

pom.xml

@@ -462,7 +462,7 @@
     <logback.version>1.2.3</logback.version>
     <testng.version>7.1.0</testng.version>
     <jetty.version>9.4.18.v20190429</jetty.version>
-    <tomcat.version>9.0.26</tomcat.version>
+    <tomcat.version>9.0.31</tomcat.version>
     <commons-io.version>2.6</commons-io.version>
     <commons-fileupload.version>1.3.3</commons-fileupload.version>
     <privilegedaccessor.version>1.2.2</privilegedaccessor.version>