Bump tough-cookie and @cypress/request in /testing/src

Bumps [tough-cookie](https://github.com/salesforce/tough-cookie) and [@cypress/request](https://github.com/cypress-io/request). These dependencies needed 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 2.88.10 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@v2.88.10...v2.88.12)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]