Bump cssnano from 4.1.11 to 5.0.7

[dependabot-preview]

Bumps cssnano from 4.1.11 to 5.0.7.

Release notes

Sourced from cssnano's releases.

v5.0.6

Bug Fixes

postcss-normalize-url: bump normalize-url dependency to 6.0.1 (#1142) (b60f54bed)

postcss-ordered-values: preserve columns count (#1144) (9acd6a2fe3e)

v5.0.5

Bug fixes

• Preserve alpha channel in color minification
• Check overlaps more exhaustively when merging rules
• Do not crash when the input CSS contains relative URLs

v5.0.4

Bug fixes

• postcss-colormin: Strict color parsing (#1122) (32771da)
• postcss-colormin: fix ERR_PACKAGE_PATH_NOT_EXPORTED (#1110) (8a31ca38796)

v5.0.2

Bug Fixes

• postcss-merge-longhand: mergeLonghand should not apply to CSS variables (#1057) (8aa64c7), closes #1051

v5.0.0

Major changes

• requires Node >= 10.13
• PostCSS 8 API, so cssnano 5 does not emit warnings when running under PostCSS 8
• updated to SVGO 2, fixing many SVG minification bugs
• updated css-value-parser and css-selector-parser, fixing many bugs

Upgrade notes

If you use the cssnano JavaScript API, you need to change your code:

• Replace cssnano.process() with cssnano().process() (notice the () after cssnano)

• pass cssnano options to cssnano() instead of process()

cssnano(cssnanoOptions).process(postcssOptions)

Bug fixes

• fix improperly discarding @font-face declarations #726
• partially fix some isues where cssnano did not combine rules when used together with postcss-nested #1004

... (truncated)

Commits

• 2c246ec Publish cssnano 5.0.7
• b1e9581 chore(postcss-reduce-initial): fix build command (#1170)
• ca5246d refactor(postcss-reduce-initial): refactor and add tests for acquire script (...
• 506a823 Improve config documentation and remove 22 dependencies from cssnano (#1168)
• 9886775 chore(git): clean up .gitignore files (#1156)
• 095f901 test: fix misc. test warnings (#1161)
• 629918c chore(docs): update to latest docusaurus (#1155)
• 3ebc3d9 fix(site-playground): add missing error handling to fix WSOD (#991) (#1154)
• ef098b1 chore(deps): bump postcss-svgo dep of svgo from v2.3.0 to 2.3.1 (#1152)
• 2a0128c chore(docs): update docusaurus (#1151)
• Additional commits viewable in compare view

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