Update is-there to version 4.3.1 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

is-there just published its new version 4.3.1, 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 is-there – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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The new version differs by 2 commits .

• a334c7d Adding badges
• 2ab347f :fireworks:

See the full diff.

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