chore: update gulp-less from v4 to v5

[Bayheck]

Purpose

Remove vulnerable lodash pick that was used by gulp-less version 4.

Approach

Updated version of gulp-less from version 4 to 5

References

https://github.com/DevExpress/testcafe/security/dependabot/24

Pre-Merge TODO

• [ ] Write tests for your proposed changes
• [ ] Make sure that existing tests do not fail