Bump @types/node from 12.6.5 to 12.6.8

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 12.6.5 to 12.6.8.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

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

yarn.lock

@@ -976,9 +976,9 @@
     moment ">=2.14.0"
 
 "@types/node@*", "@types/node@^12.6.2":
-  version "12.6.5"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.6.5.tgz#716f6b4258d04c0439e19b35b33242d431603368"
-  integrity sha512-8IUaNE8dbiVyv6wdi3mgrxZ9IYfDaulRY8A2MKiDugYj/tjPz/+JdwuC/uuBlGb+yTapiTratHfksPCy8trPQg==
+  version "12.6.8"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.6.8.tgz#e469b4bf9d1c9832aee4907ba8a051494357c12c"
+  integrity sha512-aX+gFgA5GHcDi89KG5keey2zf0WfZk/HAQotEamsK2kbey+8yGKcson0hbK8E+v0NArlCJQCqMP161YhV6ZXLg==
 
 "@types/prop-types@*":
   version "15.7.1"