Update dependency mix_audit to v2.1.5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
mix_audit (source)	dev	patch	2.1.4 → 2.1.5

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Release Notes

mirego/mix_audit (mix_audit)

v2.1.5

Compare Source

• Update dependencies
• Use System.stop/1 instead of System.halt/1
• Use System.user_home() instead of System.get_env("HOME")

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Configuration

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: mix.lock

Command failed: install-tool elixir v1.20.4