cli: memory leak issue reported by asan

This patch fixes Indirect leaks in tests/bugs/heal-symlinks.t.
Leaks are happening in cli_cmd_volume_heal_cbk.
SUMMARY: AddressSanitizer: 640 byte(s) leaked in 4 allocation(s).

Updates: bz#1633930

Change-Id: I970b4229630fdaf01aec66581c1287beef7560a3
Signed-off-by: Harpreet Lalwani <hlalwani@redhat.com>

cli/src/cli-cmd-volume.c

@@ -2956,6 +2956,9 @@ out:
         }
     }
 
+    if (options)
+        dict_unref(options);
+
     CLI_STACK_DESTROY(frame);
 
     return ret;