Update @types/node to the latest version 🚀

[greenkeeper[bot]]

The devDependency @types/node was updated from 9.6.40 to 10.12.16.

This version is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

---

Find out more about this release.

FAQ and help

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).

---

Your Greenkeeper bot :palm_tree:

[codecov[bot]]

Codecov Report

Merging #225 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #225   +/-   ##
=======================================
  Coverage   97.96%   97.96%           
=======================================
  Files         101      101           
  Lines        1081     1081           
  Branches      113      113           
=======================================
  Hits         1059     1059           
  Misses          1        1           
  Partials       21       21

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update ec21b2c...cfd3cc6. Read the comment docs.

[greenkeeper[bot]]

• The devDependency @types/node was updated from 9.6.41 to 10.12.17.

Update to this version instead 🚀

[greenkeeper[bot]]

• The devDependency @types/node was updated from 9.6.41 to 10.12.18.

Update to this version instead 🚀