Land rapid7#14905, Use ensure to run exploit cleanup

Author: acammack-r7

lib/msf/core/exploit_driver.rb

@@ -166,12 +166,13 @@ def run
 
       begin
         job_run_proc(ctx)
-        # For multi exploit targets.
-        # Keep the payload handler until last target or interrupt
-        job_cleanup_proc(ctx) unless keep_handler
       rescue ::Interrupt
         job_cleanup_proc(ctx)
         raise $!
+      ensure
+        # For multi exploit targets.
+        # Keep the payload handler until last target or interrupt
+        job_cleanup_proc(ctx) unless keep_handler
       end
     end