chore(deps-dev): bump autoprefixer from 10.5.2 to 10.5.6 in /client

[dependabot]

Bumps autoprefixer from 10.5.2 to 10.5.6.

Release notes

Sourced from autoprefixer's releases.

10.5.6

• Fixed producing wrong old -webkit- gradients (by @​ryanchou1994).

10.5.5

• Fixed resolution media query parsing performance (by @​NotAFlightRisk).

10.5.4

• Fixed prefixed rule duplication (by @​xianjianlf2).

10.5.3

• Fixed brackets and gradient parser (@​alanturing881).

Changelog

Sourced from autoprefixer's changelog.

10.5.6

• Fixed producing wrong old -webkit- gradients (by @​ryanchou1994).

10.5.5

• Fixed resolution media query parsing performance (by @​NotAFlightRisk).

10.5.4

• Fixed prefixed rule duplication (by @​xianjianlf2).

10.5.3

• Fixed brackets and gradient parser (@​alanturing881).

Commits

• b031690 Release 10.5.6 version
• da65c36 Add warning when Autoprefixer can cover CSS for old Safari
• 604f8d9 Update dependencies
• 54608ca Fix old WebKit gradients with color hints (#1554)
• 7e81fff Release 10.5.5 version
• d9e3531 Update dependencies
• 34b3a3e Fix media query parse performance
• 265521e Remove Cult
• dd80d38 Update EM banner
• 4cad00f Release 10.5.4 version
• Additional commits viewable in compare view

[strix-security]

Strix Security Review

Warning

This pull request has 57 commits after the last Strix review (cce237b). Strix has not reviewed these changes.
Automatic review on push is off for this repository. To review the latest changes, tag @strix-security in a comment, or turn on re-review on push.

No security issues found.

_{Updated for cce237b.}

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Reviewed by Strix
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[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.