[Snyk] Security upgrade css-loader from 0.28.7 to 2.0.0

[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:
  • packages/react-scripts/package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	586/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.3	Regular Expression Denial of Service (ReDoS) SNYK-JS-POSTCSS-1255640	Yes	Proof of Concept

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

Commit messages

Package name: css-loader

The new version differs by 98 commits.

• 634ab49 chore(release): 2.0.0
• 6ade2d0 refactor: remove unused file (#860)
• e7525c9 test: nested url (#859)
• 7259faa test: css hacks (#858)
• 5e6034c feat: allow to filter import at-rules (#857)
• 5e702e7 feat: allow filtering urls (#856)
• 9642aa5 test: css stuff (#855)
• 3338656 fix: reduce number of require for url (#854)
• 533abbe test: issue 636 (#853)
• 08c551c refactor: better warning on invalid url resolution (#852)
• b0aa159 test: issue #589 (#851)
• f599c70 fix: broken unucode characters (#850)
• 1e551f3 test: issue 286 (#849)
• 419d27b docs: improve readme (#848)
• d94a698 refactor: webpack-default (#847)
• b97d997 feat: schema options
• 453248f fix: support module resolution in composes (#845)
• 8a6ea10 refactor: postcss plugins (#844)
• fdcf687 fix: url resolving logic (#843)
• 889dc7f feat: allow to disable css modules and disable their by default (#842)
• ee2d253 test: importLoaders option (#841)
• 1dad1fb feat: reuse postcss ast from other loaders (i.e `postcss-loader`) (#840)
• fe94ebc test: icss reserved keywords (#839)
• 9eaba66 refactor: migrate on message api for postcss-icss-plugin (#838)

See the full diff

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