SEC-2649: Update to Tomcat 7.0.54

gradle/tomcat.gradle

@@ -1,7 +1,7 @@
 apply plugin: 'tomcat'
 
 dependencies {
-    def tomcatVersion = '7.0.42'
+    def tomcatVersion = '7.0.54'
     tomcat "org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}",
            "org.apache.tomcat.embed:tomcat-embed-logging-juli:${tomcatVersion}"
     tomcat("org.apache.tomcat.embed:tomcat-embed-jasper:${tomcatVersion}") {