feature(json) update jiffy to 1.0.5

rebar.config

@@ -4,7 +4,7 @@
 
 {deps,
  [{gproc, {git, "https://github.com/uwiger/gproc", {tag, "0.8.0"}}},
-  {jiffy, {git, "https://github.com/emqx/jiffy", {tag, "1.0.4"}}},
+  {jiffy, {git, "https://github.com/emqx/jiffy", {tag, "1.0.5"}}},
   {cowboy, {git, "https://github.com/emqx/cowboy", {tag, "2.7.1"}}},
   {esockd, {git, "https://github.com/emqx/esockd", {tag, "5.7.0"}}},
   {ekka, {git, "https://github.com/emqx/ekka", {tag, "0.7.3"}}},