Bump gulp-csso from 2.0.0 to 4.0.1

Created by: dependabot-preview[bot]

Bumps gulp-csso from 2.0.0 to 4.0.1.

Release notes

Sourced from gulp-csso's releases.

4.0.1

• Fix error handling

4.0.0

• Update CSSO to ^4.0.0
• Plugin never produce a parse error, but drops bad parts of CSS instead
• Drop support for Node.js < 8

3.0.1

• Drop dependency on deprecated gulp-util (#30, thanks to @​TheDancingCode)

Changelog

Sourced from gulp-csso's changelog.

4.0.1 (November 14, 2019)

• Fix error handling

4.0.0 (November 14, 2019)

• Update CSSO to ^4.0.0
• Plugin never produce a parse error, but drops bad parts of CSS instead
• Drop support for Node.js < 8

3.0.1

• Drop dependency on deprecated gulp-util (#30, thanks to @​TheDancingCode)

3.0.0

• Update CSSO to 3.0.0 (thanks to @​lahmatiy).

Commits

• f758a8c 4.0.1
• e0ca44d Fix error handling
• b92c24b Fix travis config
• 67710f1 4.0.0
• 222deb5 Drop Node.js < 8 and related refactoring
• d30bda3 Bump dependencies (CSSO 4.0+)
• 9d07cc6 3.0.1
• 1d116fd Update changelog
• 1060fcd Drop dependency on deprecated gulp-util (#31)
• f488df3 Add links to CSSO release notes
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by lahmatiy, a new releaser for gulp-csso since your current version.

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