fix(deps): update dependency dotenv to v6.1.0

Author: renovate-bot

package.json

@@ -38,7 +38,7 @@
     "babel-preset-stage-2": "6.24.1",
     "bunyan": "1.8.12",
     "bunyan-debug-stream": "1.1.1",
-    "dotenv": "6.0.0",
+    "dotenv": "6.1.0",
     "escape-html": "1.0.3",
     "got": "8.3.2",
     "gravatar-url": "2.0.0",

yarn.lock

@@ -1869,9 +1869,9 @@ domutils@^1.5.1:
     dom-serializer "0"
     domelementtype "1"
 
-dotenv@6.0.0:
-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-6.0.0.tgz#24e37c041741c5f4b25324958ebbc34bca965935"
+dotenv@6.1.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-6.1.0.tgz#9853b6ca98292acb7dec67a95018fa40bccff42c"
 
 dtrace-provider@~0.8:
   version "0.8.5"