chore(deps): update dependency eslint to v6.4.0

Author: renovate-bot

package.json

@@ -106,7 +106,7 @@
     "ember-resolver": "5.2.1",
     "ember-source": "3.12.0",
     "ember-try": "1.2.1",
-    "eslint": "6.3.0",
+    "eslint": "6.4.0",
     "eslint-plugin-ember": "7.0.0",
     "eslint-plugin-node": "10.0.0",
     "eslint-plugin-prettier": "3.1.0",

yarn.lock

@@ -7365,10 +7365,10 @@ eslint-visitor-keys@^1.1.0:
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz#e2a82cea84ff246ad6fb57f9bde5b46621459ec2"
   integrity sha512-8y9YjtM1JBJU/A9Kc+SbaOV4y29sSWckBwMHa+FGtVj5gN/sbnKDf6xJUl+8g7FAij9LVaP8C24DUiH/f/2Z9A==
 
-eslint@6.3.0:
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-6.3.0.tgz#1f1a902f67bfd4c354e7288b81e40654d927eb6a"
-  integrity sha512-ZvZTKaqDue+N8Y9g0kp6UPZtS4FSY3qARxBs7p4f0H0iof381XHduqVerFWtK8DPtKmemqbqCFENWSQgPR/Gow==
+eslint@6.4.0:
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-6.4.0.tgz#5aa9227c3fbe921982b2eda94ba0d7fae858611a"
+  integrity sha512-WTVEzK3lSFoXUovDHEbkJqCVPEPwbhCq4trDktNI6ygs7aO41d4cDT0JFAT5MivzZeVLWlg7vHL+bgrQv/t3vA==
   dependencies:
     "@babel/code-frame" "^7.0.0"
     ajv "^6.10.0"