Update dependency dotenv to v3.1.8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
dotenv (changelog)	3.1.7 -> 3.1.8

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Release Notes

bkeepers/dotenv (dotenv)

v3.1.8

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Thanks to Stoked Seagull Software for sponsoring this release of dotenv.
Need help with a software project but don't know where to begin? Stoked Seagull can help.

^{Interested in sponsoring dotenv?}

What's Changed

• fix crash when .env is a folder by @​Roupiye in https://github.com/bkeepers/dotenv/pull/527
• docs: Clarify order of configuration files for flag -f by @​webrails in https://github.com/bkeepers/dotenv/pull/529
• docs: Provide a 'Changelog' link on rubygems.org/gems/dotenv-rails by @​mark-young-atg in https://github.com/bkeepers/dotenv/pull/524

New Contributors

• @​webrails made their first contribution in https://github.com/bkeepers/dotenv/pull/529
• @​Roupiye made their first contribution in https://github.com/bkeepers/dotenv/pull/527

Full Changelog: bkeepers/dotenv@v3.1.7...v3.1.8

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Configuration

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