chore(deps): update pre-commit hook executablebooks/mdformat to v0.7.18

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
executablebooks/mdformat	repository	patch	0.7.17 -> 0.7.18

Note: The pre-commit manager in Renovate is not supported by the pre-commit maintainers or community. Please do not report any problems there, instead create a Discussion in the Renovate repository if you have any questions.

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Release Notes

executablebooks/mdformat (executablebooks/mdformat)

### [`v0.7.18`](https://redirect.github.com/executablebooks/mdformat/compare/0.7.17...0.7.18) [Compare Source](https://redirect.github.com/executablebooks/mdformat/compare/0.7.17...0.7.18)

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Configuration

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🚦 Automerge: Enabled.

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

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

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