[Snyk] Security upgrade gulp-autoprefixer from 4.0.0 to 8.0.0

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • package.json
  • package-lock.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	479/1000 Why? Has a fix available, CVSS 5.3	Regular Expression Denial of Service (ReDoS) SNYK-JS-POSTCSS-1255640	Yes	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: gulp-autoprefixer

The new version differs by 21 commits.

• ede5a11 8.0.0
• a953087 Require Node.js 12 and upgrade dependencies
• 87ff53d Move to GitHub Actions (Revive E4X as EXQO with extended SAX as Methods. #117)
• c5e7214 7.0.1
• da50fd2 Make Gulp an optional peer dependency
• 40fba84 7.0.0
• ab49120 Require Node.js 8 and Gulp 4
• 83cc576 Enable the repo sponsor button
• adec1a7 6.1.0
• 7b080bf Upgrade dependencies
• dfe3919 6.0.0
• c225cbd Upgrade `autoprefixer` and `postcss`
• ea0b7f8 Require Node.js 6
• 18a27be 5.0.0
• e526a78 Meta tweaks
• e954e6e Update sourcemap paths to be relative to `file.base` (RESTful API tests #92)
• 7828646 Upgrade to Autoprefixer 8 (Enhancement: Side menu #96)
• d008588 4.1.0
• 27816c3 Meta tweaks
• 94f3447 Drop dependency on deprecated gulp-util (Enhancement: Verify user with email #94)
• 60aead3 Test against Node.js v8 (Update header.client.view.html #90)

See the full diff

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