Collector looks like hex, store it as a string

modules/exploits/windows/http/jira_collector_traversal.rb

@@ -53,7 +53,7 @@ class MetasploitModule < Msf::Exploit::Remote
       [
         Opt::RPORT(8080),
         OptString.new('TARGETURI', [true, 'Path to JIRA', '/']),
-        OptInt.new('COLLECTOR', [true, 'Collector ID'])
+        OptString.new('COLLECTOR', [true, 'Collector ID'])
       ], self.class)
 
     register_advanced_options(