chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

yarn.lock

@@ -1241,7 +1241,7 @@ chalk@^0.4.0:
     has-color "~0.1.0"
     strip-ansi "~0.1.0"
 
-chalk@^1.1.0, chalk@^1.1.3:
+chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -4753,6 +4753,14 @@ readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.6, readable
     string_decoder "~1.0.3"
     util-deprecate "~1.0.1"
 
+readable-stream@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.0.2.tgz#ca0f4f8e426bcabd772df73096b8d3f6722b31ff"
+  dependencies:
+    inherits "^2.0.3"
+    string_decoder "^1.1.1"
+    util-deprecate "^1.0.1"
+
 readdirp@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
@@ -5139,15 +5147,16 @@ slide@^1.1.5:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/slide/-/slide-1.1.6.tgz#56eb027d65b4d2dce6cb2e2d32c4d4afc9e1d707"
 
-snazzy@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/snazzy/-/snazzy-7.0.0.tgz#95edaccc4a8d6f80f4ac5cc7b520e8f8f9ac2325"
+snazzy@^8.0.0:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/snazzy/-/snazzy-8.0.0.tgz#97a6d4173d03f6549b98a9dd88362765fac0ef88"
   dependencies:
-    chalk "^1.1.0"
+    chalk "^2.3.0"
     inherits "^2.0.1"
     minimist "^1.1.1"
-    readable-stream "^2.0.6"
+    readable-stream "^3.0.2"
     standard-json "^1.0.0"
+    strip-ansi "^4.0.0"
     text-table "^0.2.0"
 
 sntp@1.x.x:
@@ -5330,6 +5339,12 @@ string_decoder@^1.0.0, string_decoder@~1.0.3:
   dependencies:
     safe-buffer "~5.1.0"
 
+string_decoder@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
+  dependencies:
+    safe-buffer "~5.1.0"
+
 stringstream@~0.0.4, stringstream@~0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
@@ -5708,7 +5723,7 @@ user-home@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/user-home/-/user-home-1.1.1.tgz#2b5be23a32b63a7c9deb8d0f28d485724a3df190"
 
-util-deprecate@~1.0.1:
+util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"