Bug 1585422: update mac hostutils r=gbrown

Differential Revision: https://phabricator.services.mozilla.com/D48125

--HG--
extra : moz-landing-system : lando

testing/config/tooltool-manifests/macosx64/hostutils.manifest

@@ -2,9 +2,9 @@
   {
     "algorithm": "sha512",
     "visibility": "public",
-    "filename": "host-utils-68.0a1.en-US.mac.tar.gz",
+    "filename": "host-utils-71.0a1.en-US.mac.tar.gz",
     "unpack": true,
-    "digest": "4dd91bc77d0a8a6e8166aac534b71712d0ab26d2f2e170a4f547e4c7190a572cc8de4c8ce310bc41a840224dd47265841a1e8b790ad33db0d4b78ec54b0be192",
-    "size": 85224489
+    "digest": "e7424f5ae427682344105afe94423b4087dbd792312d1c579bc8402dd7873cae545053ae9cf0f358267b386e21d98cecee45649a4ff6a3640a1d39b88e01261c",
+    "size": 90678290
   }
-]
+]