dns-cli: add dns-resolver dependency

Author: hannesm

packages/dns-cli/dns-cli.10.1.0/opam

@@ -16,6 +16,7 @@ depends: [
   "dns-client-lwt" {= version}
   "dns-server" {= version}
   "dns-certify" {= version}
+  "dns-resolver-mirage" {= version}
   "bos" {>= "0.2.0"}
   "cmdliner" {>= "1.1.0"}
   "fpath" {>= "0.7.2"}