Update dependency @types/node to v10.12.2

Created by: renovate[bot]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
@​types/node	devDependencies	patch	10.12.2	source

---

Renovate configuration

📅 Schedule: "on the 1st through 7th day of the month" in timezone America/Los_Angeles.

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or if you modify the PR title to begin with "rebase!".

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

This PR has been generated by Renovate Bot. View repository job log here.