Bump through2 from 3.0.2 to 4.0.1

Bumps [through2](https://github.com/rvagg/through2) from 3.0.2 to 4.0.1.
- [Release notes](https://github.com/rvagg/through2/releases)
- [Commits](rvagg/through2@v3.0.2...v4.0.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -29,7 +29,7 @@
   "dependencies": {
     "main-bower-files": "2.13.3",
     "plugin-error": "1.0.1",
-    "through2": "3.0.2"
+    "through2": "4.0.1"
   },
   "devDependencies": {
     "codecov.io": "0.1.6",

yarn.lock

@@ -2928,10 +2928,10 @@ read-pkg@^1.0.0:
     normalize-package-data "^2.3.2"
     path-type "^1.0.0"
 
-"readable-stream@2 || 3":
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.0.6.tgz#351302e4c68b5abd6a2ed55376a7f9a25be3057a"
-  integrity sha512-9E1oLoOWfhSXHGv6QlwXJim7uNzd9EVlWK+21tCU9Ju/kR0/p2AZYPz4qSchgO8PlLIH4FpZYfzwS+rEksZjIg==
+"readable-stream@2 || 3", readable-stream@3:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
+  integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
   dependencies:
     inherits "^2.0.3"
     string_decoder "^1.1.1"
@@ -3590,13 +3590,13 @@ through2-filter@^2.0.0:
     through2 "~2.0.0"
     xtend "~4.0.0"
 
-through2@3.0.2, through2@^3.0.1:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/through2/-/through2-3.0.2.tgz#99f88931cfc761ec7678b41d5d7336b5b6a07bf4"
-  integrity sha512-enaDQ4MUyP2W6ZyT6EsMzqBPZaM/avg8iuo+l2d3QCs0J+6RaqkHV/2/lOwDTueBHeJ/2LG9lrLW3d5rWPucuQ==
+through2@4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-4.0.1.tgz#ef2964e95a055bef1ec06f45688f6e5245da699b"
+  integrity sha512-G04e2YDcXGlUPGbPKpqcPgcw+CmIWbHAy9ifmGrjfoeColNJ93CsA2qpSOoGvFylskm22ItBIg7L3Wv/eLiVaw==
   dependencies:
     inherits "^2.0.4"
-    readable-stream "2 || 3"
+    readable-stream "3"
 
 through2@^0.6.1:
   version "0.6.5"
@@ -3614,6 +3614,14 @@ through2@^2.0.0, through2@^2.0.3, through2@~2.0.0:
     readable-stream "~2.3.6"
     xtend "~4.0.1"
 
+through2@^3.0.1:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-3.0.2.tgz#99f88931cfc761ec7678b41d5d7336b5b6a07bf4"
+  integrity sha512-enaDQ4MUyP2W6ZyT6EsMzqBPZaM/avg8iuo+l2d3QCs0J+6RaqkHV/2/lOwDTueBHeJ/2LG9lrLW3d5rWPucuQ==
+  dependencies:
+    inherits "^2.0.4"
+    readable-stream "2 || 3"
+
 through@2, through@~2.3.4:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"