build(deps-dev): bump @types/node from 11.13.7 to 11.13.8

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 11.13.7 to 11.13.8.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -116,7 +116,7 @@
     "@types/mime-types": "^2.1.0",
     "@types/minimist": "^1.2.0",
     "@types/mocha": "^5.1.0",
-    "@types/node": "^11.13.7",
+    "@types/node": "^11.13.8",
     "@types/node-fetch": "^2.3.3",
     "@types/opn": "^5.1.0",
     "@types/pify": "^3.0.1",

yarn.lock

@@ -1073,10 +1073,10 @@
   dependencies:
     "@types/node" "*"
 
-"@types/node@*", "@types/node@^11.13.7":
-  version "11.13.7"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.13.7.tgz#85dbb71c510442d00c0631f99dae957ce44fd104"
-  integrity sha512-suFHr6hcA9mp8vFrZTgrmqW2ZU3mbWsryQtQlY/QvwTISCw7nw/j+bCQPPohqmskhmqa5wLNuMHTTsc+xf1MQg==
+"@types/node@*", "@types/node@^11.13.8":
+  version "11.13.8"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.13.8.tgz#e5d71173c95533be9842b2c798978f095f912aab"
+  integrity sha512-szA3x/3miL90ZJxUCzx9haNbK5/zmPieGraZEe4WI+3srN0eGLiT22NXeMHmyhNEopn+IrxqMc7wdVwvPl8meg==
 
 "@types/opn@^5.1.0":
   version "5.1.0"