Update dependency danger to v10.6.4

package.json

@@ -47,7 +47,7 @@
     "babel-plugin-styled-components": "1.12.0",
     "babel-preset-env": "1.7.0",
     "babel-preset-react": "6.24.1",
-    "danger": "10.6.1",
+    "danger": "10.6.4",
     "enzyme": "3.11.0",
     "enzyme-adapter-react-16": "1.15.6",
     "enzyme-to-json": "3.6.1",

yarn.lock

@@ -6642,10 +6642,10 @@ d@1, d@^1.0.1:
     es5-ext "^0.10.50"
     type "^1.0.1"
 
-[email protected].1:
-  version "10.6.1"
-  resolved "https://registry.yarnpkg.com/danger/-/danger-10.6.1.tgz#b19bd8f15f764b13a4bc3c1cb5b3a74e199f93c4"
-  integrity sha512-uoAhEziWafPq9oCHFFr4d3gMcAmiLaybUT73c1ZEWnATGlwPthGKDOE9DE0TNpr2yMeV9GgpruOD5URivP8LBw==
+[email protected].4:
+  version "10.6.4"
+  resolved "https://registry.yarnpkg.com/danger/-/danger-10.6.4.tgz#b77e892d44e20a01b891ddbe62b6311027f42cf2"
+  integrity sha512-M8W1wP4SaFQHYwXTP8kgc6D0FPmxT9YJg8U19CjcDYmyAK+iU9R4GlX8lmNkJ+kX19yym5M5hzB0aIbWfVD/1g==
   dependencies:
     "@babel/polyfill" "^7.2.5"
     "@octokit/rest" "^16.43.1"