chore(deps): update dependency mocha to v6.2.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
mocha (source)	devDependencies	patch	6.2.2 -> 6.2.3

---

Release Notes

mochajs/mocha

### [`v6.2.3`](https://togithub.com/mochajs/mocha/blob/master/CHANGELOG.md#​623--2020-03-25) [Compare Source](https://togithub.com/mochajs/mocha/compare/v6.2.2...v6.2.3) #### :lock: Security Fixes - [848d6fb8](https://togithub.com/mochajs/mocha/commit/848d6fb8feef659564b296db457312d38176910d): Update dependencies mkdirp, yargs-parser and yargs ([**@​juergba**](https://togithub.com/juergba))

---

Renovate configuration

:date: Schedule: "after 10pm every weekday,before 5am every weekday" in timezone Europe/London.

:vertical_traffic_light: Automerge: Enabled.

:recycle: Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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

---

• [ ] If you want to rebase/retry this PR, check this box

---

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

[renovate[bot]]

Branch automerge failure

This PR was configured for branch automerge, however this is not possible so it has been raised as a PR instead.

[coveralls]

Coverage remained the same at 80.638% when pulling f565fb6e214568d987b44586b83d4793077925a2 on renovate/mocha-6.x into db2b80c008a970d74fb2d7abdadd517a4c72e6e9 on master.

[coveralls]

Coverage remained the same at 80.638% when pulling 418b883841329e7bdfbb56c8cbe3f197c32f8070 on renovate/mocha-6.x into 10ca63fccebc19a1aaf61092282bef48215e53d7 on master.