JCR-4919: Update tomcat dependency to 8.5.87

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/trunk@1908784 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/jackrabbit-webapp/pom.xml b/jackrabbit-webapp/pom.xml
index e18be69..e7f4bfe 100644
--- a/jackrabbit-webapp/pom.xml
+++ b/jackrabbit-webapp/pom.xml
@@ -35,7 +35,7 @@
   <description>Web application that hosts and serves a Jackrabbit content repository</description>
 
   <properties>
-    <tomcat.version>8.5.86</tomcat.version>
+    <tomcat.version>8.5.87</tomcat.version>
   </properties>
 
   <dependencies>