Bump clean-css from 5.2.4 to 5.3.1

[dependabot[bot]]

Bumps clean-css from 5.2.4 to 5.3.1.

Changelog

Sourced from clean-css's changelog.

5.3.1 / 2022-07-13

• Fixed issue #1218 - double hyphen in at-rule breaks parsing.
• Fixed issue #1220 - adds optimization for nth-* rules.

5.3.0 / 2022-03-31

• Adds customizable value optimizers for variables.
• Fixed issue #1159 - adds optimization for nth-child and nth-of-type.
• Fixed issue #1181 - CSS level 4 color functions with spaces.
• Fixed issue #1183 - fraction optimizer breaks image-set.
• Fixed issue #1208 - handling generic family names.
• Fixed issue #1210 - handling file:// protocol.

Commits

• f1047cd Version 5.3.1.
• 93391d1 Updates changelog for 5.3.1 release.
• f311d38 Fixes #1218 - double hyphen in at-rule breaks parsing (#1219)
• 4c1399d Add optimization for nth-last-child and nth-last-of-type (#1220)
• ba834c6 Version 5.3.0.
• 3dd762d Updates docs to add information about a new variableValueOptimizers option.
• d53fecf Adds customizable value optimizers for variables. (#1217)
• d89424d Adds safer regular expressions to avoid performance issues.
• 9083e10 Bump path-parse from 1.0.6 to 1.0.7 (#1214)
• 941f4d8 Bump elliptic from 6.5.3 to 6.5.4 (#1215)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)