[Snyk] Security upgrade node-sass from 3.13.1 to 4.14.1

[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:
  • client/package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	551/1000 Why? Recently disclosed, Has a fix available, CVSS 5.3	Improper Certificate Validation SNYK-JS-NODESASS-1059081	Yes	No Known Exploit

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

Commit messages

Package name: node-sass

The new version differs by 241 commits.

• 0d6c3cc 4.14.1
• 1cc6263 Bump sass-graph@2.2.5 (#2915)
• aa193f6 chore: Add GitHub Actions for Alpine CI
• eac343c 4.14.0
• bbeb78c Update changelog
• 1210aab Fix #2621: Report libsass version 3.5.5 (#2769)
• 5a4a48a feat: Add Node 14 support
• b54053a Update changelog
• 01db051 4.13.1
• 338fd7a Merge pull request from GHSA-f6rp-gv58-9cw3
• c6f2e5a doc: README example fix (#2787)
• fbc9ff5 Merge pull request #2754 from saper/no-map-if-not-requested
• 60fad5f 4.13.0
• 43db915 Merge pull request #2768 from sass/release-4-13
• 0c8d308 Update references for v4.13 release
• f1cc0d3 Use GCC 6 for Node 12 binaries (#2767)
• 3838eae Use GCC 6 for Node 12 binaries
• e84c6a9 Merge pull request #2766 from saper/node-modules-79
• 64b6f32 Node 13 support
• 8498f70 Fix #2394: sourceMap option should have consistent behaviour
• 8d0acca Merge pull request #2753 from schwigri/master
• b0d4d85 Fix broken link to NodeJS docs in README.md
• 887199a Merge pull request #2730 from kessenich/master
• b1f54d7 Fix #2614 - Update lodash version

See the full diff

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