cli: fix a memory leak reported by ASan.

Fixed a leak in cli_cmd_volume_remove_brick_cbk.
SUMMARY: AddressSanitizer: 1152 byte(s) leaked in 8 allocation(s)

updates: bz#1633930

Credits: Mohit Agrawal
Change-Id: Idb59c3880329fde59c415c84d7f0bb09ae879a1a
Signed-off-by: Rinku Kothiya <rkothiya@redhat.com>

cli/src/cli-cmd-volume.c

@@ -2163,6 +2163,8 @@ out:
 #endif
 
     CLI_STACK_DESTROY(frame);
+    if (options)
+        dict_unref(options);
 
     return ret;
 }