build(deps-dev): bump cssnano from 4.1.11 to 5.0.3

[dependabot-preview]

Bumps cssnano from 4.1.11 to 5.0.3.

Release notes

Sourced from cssnano's releases.

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
• fix translate3d() minification #920
• fix minification of values starting with e #589, #984
• fix minification of percentage vaalues #962, #957
• fix minification of aspect-ratio #963
• fix merging of @supports rules #974
• fix sorting of longhand and shorthand properties #535
• remove vulnerable dependency and always warn with bad SVG input #1034

Commits

• 4e072b7 Publish
• b001bf8 chore: update ignore in lerna.json
• a7f0be4 feat(postcss-colormin): switch to colord and solve multiple issues (#1107)
• ea1ff0b chore: update css-declaration-sorter to v6.0.3 (#1071)
• 02e3aab chore(site): update all website dependencies (#1101)
• 65d8197 chore(postcss-zindex): refactor to drop depenencies (#1096)
• 4d7fe36 fix(postcss-merge-rules): add some missing known pseudo classes. (#1099)
• c5e0a5e fix(postcss-merge-rules): prevent breaking rule merges (#1072)
• 15235a9 chore: update postcss and postcss-selector-parser (#1097)
• 1aa8f5d chore: fix the code to generate the integration test fixtures (#1070)
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #125.