Update dependency @babel/preset-env to v7.7.6

Author: renovate-bot

package.json

@@ -37,7 +37,7 @@
     "@babel/core": "7.7.5",
     "@babel/plugin-proposal-async-generator-functions": "7.7.4",
     "@babel/polyfill": "7.7.0",
-    "@babel/preset-env": "7.7.5",
+    "@babel/preset-env": "7.7.6",
     "@babel/register": "7.7.4",
     "ava": "2.4.0",
     "coveralls": "3.0.9",

yarn.lock

@@ -819,10 +819,10 @@
     core-js "^2.6.5"
     regenerator-runtime "^0.13.2"
 
-"@babel/preset-env@7.7.5":
-  version "7.7.5"
-  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.7.5.tgz#f28573ed493edb4ba763b37fb4fbb85601469370"
-  integrity sha512-wDPbiaZdGzsJuTWlpLHJxmwslwHGLZ8F5v69zX3oAWeTOFWdy4OJHoTKg26oAnFg052v+/LAPY5os9KB0LrOEA==
+"@babel/preset-env@7.7.6":
+  version "7.7.6"
+  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.7.6.tgz#39ac600427bbb94eec6b27953f1dfa1d64d457b2"
+  integrity sha512-k5hO17iF/Q7tR9Jv8PdNBZWYW6RofxhnxKjBMc0nG4JTaWvOTiPoO/RLFwAKcA4FpmuBFm6jkoqaRJLGi0zdaQ==
   dependencies:
     "@babel/helper-module-imports" "^7.7.4"
     "@babel/helper-plugin-utils" "^7.0.0"