build(deps-dev): bump @types/node from 12.0.4 to 12.6.6

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 12.0.4 to 12.6.6.
- [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>

Author: dependabot-preview[bot]

package-lock.json

@@ -99,7 +99,7 @@
     "@types/got": "~9.6.1",
     "@types/mocha": "~5.2.7",
     "@types/nock": "~10.0.3",
-    "@types/node": "~12.0.4",
+    "@types/node": "~12.6.6",
     "@types/prettier": "~1.16.4",
     "@types/sinon": "~7.0.12",
     "chai": "~4.2.0",