Bump tough-cookie, @cypress/request and node-sass in /src/webapp

Bumps [tough-cookie](https://github.com/salesforce/tough-cookie) to 4.1.3 and updates ancestor dependencies [tough-cookie](https://github.com/salesforce/tough-cookie), [@cypress/request](https://github.com/cypress-io/request) and [node-sass](https://github.com/sass/node-sass). These dependencies need to be updated together.


Updates `tough-cookie` from 2.5.0 to 4.1.3
- [Release notes](https://github.com/salesforce/tough-cookie/releases)
- [Changelog](https://github.com/salesforce/tough-cookie/blob/master/CHANGELOG.md)
- [Commits](salesforce/tough-cookie@v2.5.0...v4.1.3)

Updates `@cypress/request` from 2.88.11 to 2.88.12
- [Release notes](https://github.com/cypress-io/request/releases)
- [Changelog](https://github.com/cypress-io/request/blob/master/CHANGELOG.md)
- [Commits](cypress-io/request@v2.88.11...v2.88.12)

Updates `node-sass` from 5.0.0 to 9.0.0
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](sass/node-sass@v5.0.0...v9.0.0)

---
updated-dependencies:
- dependency-name: tough-cookie
  dependency-type: indirect
- dependency-name: "@cypress/request"
  dependency-type: indirect
- dependency-name: node-sass
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]