Update dependency codecov to v3

package.json

@@ -80,7 +80,7 @@
     "babel-runtime": "6.26.0",
     "chai": "3.5.0",
     "chai-enzyme": "0.6.1",
-    "codecov": "2.3.1",
+    "codecov": "3.0.2",
     "compression-webpack-plugin": "0.3.2",
     "copy-webpack-plugin": "4.2.3",
     "cross-env": "4.0.0",

yarn.lock

@@ -1755,12 +1755,12 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-codecov@2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/codecov/-/codecov-2.3.1.tgz#7dda945cd58a1f6081025b5b03ee01a2ef20f86e"
+codecov@3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.0.2.tgz#aea43843a5cd2fb6b7e488b2eff25d367ab70b12"
   dependencies:
     argv "0.0.2"
-    request "2.77.0"
+    request "^2.81.0"
     urlgrey "0.4.4"
 
 collapse-white-space@^1.0.0:
@@ -6555,10 +6555,6 @@ qs@~6.2.0:
   version "6.2.3"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.2.3.tgz#1cfcb25c10a9b2b483053ff39f5dfc9233908cfe"
 
-qs@~6.3.0:
-  version "6.3.2"
-  resolved "https://registry.npmjs.org/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
-
 qs@~6.5.1:
   version "6.5.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
@@ -7126,31 +7122,6 @@ [email protected]:
     tough-cookie "~2.3.0"
     tunnel-agent "~0.4.1"
 
-[email protected]:
-  version "2.77.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.77.0.tgz#2b00d82030ededcc97089ffa5d8810a9c2aa314b"
-  dependencies:
-    aws-sign2 "~0.6.0"
-    aws4 "^1.2.1"
-    caseless "~0.11.0"
-    combined-stream "~1.0.5"
-    extend "~3.0.0"
-    forever-agent "~0.6.1"
-    form-data "~2.1.1"
-    har-validator "~2.0.6"
-    hawk "~3.1.3"
-    http-signature "~1.1.0"
-    is-typedarray "~1.0.0"
-    isstream "~0.1.2"
-    json-stringify-safe "~5.0.1"
-    mime-types "~2.1.7"
-    node-uuid "~1.4.7"
-    oauth-sign "~0.8.1"
-    qs "~6.3.0"
-    stringstream "~0.0.4"
-    tough-cookie "~2.3.0"
-    tunnel-agent "~0.4.1"
-
 [email protected], request@^2.81.0:
   version "2.81.0"
   resolved "https://registry.npmjs.org/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"