Updating yarn.lock file for 16.4.0 release

yarn.lock

@@ -2989,7 +2989,7 @@ iconv-lite@^0.4.17:
   version "0.4.19"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
 
-iconv-lite@^0.4.4, iconv-lite@~0.4.13:
+iconv-lite@^0.4.4:
   version "0.4.21"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.21.tgz#c47f8733d02171189ebc4a400f3218d348094798"
   dependencies:
@@ -2999,6 +2999,12 @@ iconv-lite@^0.4.5:
   version "0.4.16"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.16.tgz#65de3beeb39e2960d67f049f1634ffcbcde9014b"
 
+iconv-lite@~0.4.13:
+  version "0.4.23"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
+
 ignore-walk@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.1.tgz#a83e62e7d272ac0e3b551aaa82831a19b69f82f8"
@@ -5397,7 +5403,7 @@ safe-regex@^1.1.0:
   dependencies:
     ret "~0.1.10"
 
-safer-buffer@^2.1.0:
+"safer-buffer@>= 2.1.2 < 3", safer-buffer@^2.1.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
 
@@ -6064,8 +6070,8 @@ typescript@~1.8.10:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-1.8.10.tgz#b475d6e0dff0bf50f296e5ca6ef9fbb5c7320f1e"
 
 ua-parser-js@^0.7.9:
-  version "0.7.17"
-  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.17.tgz#e9ec5f9498b9ec910e7ae3ac626a805c4d09ecac"
+  version "0.7.18"
+  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.18.tgz#a7bfd92f56edfb117083b69e31d2aa8882d4b1ed"
 
 uglify-js@^2.6:
   version "2.8.22"