update envinfo to 5.11.1 (#5685)

Author: tabrindle

packages/create-react-app/package.json

@@ -25,7 +25,7 @@
     "chalk": "1.1.3",
     "commander": "2.18.0",
     "cross-spawn": "4.0.2",
-    "envinfo": "5.10.0",
+    "envinfo": "5.11.1",
     "fs-extra": "5.0.0",
     "hyperquest": "2.1.3",
     "semver": "5.5.1",