Update joi to version 8.3.0 🚀

[greenkeeperio-bot]

Hello 👋

🚀🚀🚀

joi just published its new version 8.3.0, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of joi – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging 🌴

---

The new version differs by 60 commits .

• 0ada70e 8.3.0
• 4a4211b Add more options to stripUnknown
• d1b673d 8.2.1
• 25ccdb9 Add and automate .npmignore
• 1d56f97 8.2.0
• 9bee900 Add Joi.lazy() (fixes #379)
• 709dd50 Add string().truncate() (fixes #833)
• 362b1b7 8.1.1
• 7f91f29 Fix wrong concatSettings order (fixes #900)
• 97221cd 8.1.0
• 6ba9191 Merge branch 'error' into v8
• e3e72c5 Support error override per rule. Closes #882
• 4f8ef50 Update hoek and travis
• c4fd0b2 Merge pull request #871 from cesine/test/string-rejects-integer
• 3a674c3 Merge pull request #868 from RoberMac/patch-1

There are 60 commits in total. See the full diff.

---

This pull request was created by greenkeeper.io.
It keeps your software up to date, all the time.

_{Tired of seeing this sponsor message? Upgrade to the supporter plan! You'll also get your pull requests faster ⚡}