Update dependency node-sass to v5

[xcomponentadmin]

This PR contains the following updates:

Package	Type	Update	Change	References
node-sass	devDependencies	major	^4.11.0 -> ^5.0.0	source

---

Release Notes

sass/node-sass

v5.0.0

Compare Source

Breaking changes

• Only support LTS and current Node versions (@​nschonni)
• Remove deprecated process.sass API (@​xzyfer, #​2986)

Features

• Add support for Node 15
• New node-gyp version that supports building with Python 3

Community

• More inclusive documentation (@​rgeerts, #​2944)
• Enabled dependabot (@​nschonni)
• Improve release automation (@​nschonni)

Fixes

• Bumped many dependencies (@​nschonni)

Supported Environments

OS	Architecture	Node
Windows	x86 & x64	10, 12, 14, 15
OSX	x64	10, 12, 14, 15
Linux*	x64	10, 12, 14, 15
Alpine Linux	x64	10, 12, 14, 15
FreeBSD	i386 amd64	10, 12, 13

*Linux support refers to major distributions like Ubuntu, and Debian

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Whenever PR becomes conflicted, or if you modify the PR title to begin with "rebase!".

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

This PR has been generated by Renovate Bot.

[xcomponentadmin]

⚠️ Lock file problem

Renovate failed to update a lock file. You probably do not want to merge this PR as-is.

♻️ Renovate will retry this branch, including lockfile, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The lock file failure details are included below:

yarn.lock

warning node-sass > node-gyp > request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
warning node-sass > node-gyp > request > har-validator@5.1.5: this library is no longer supported
error An unexpected error occurred: "https://registry.yarnpkg.com/rxjs-compat/-/rxjs-compat-6.3.3.tgz: ESOCKETTIMEDOUT".
Process stalled
Active handles:
  - Socket
  - Socket
  - Socket
  - TLSSocket
  - TLSSocket
  - TLSSocket
  - TLSSocket

[xcomponentadmin]

Autoclosing Skipped

This PR has been flagged for autoclosing, however it is being skipped due to the branch being already modified. Please close/delete it manually or report a bug if you think this is in error.