MOB-40696: Taurus Playwright executor

[havja]

Each PR must conform to Developer's Guide.

Quick checklist:

• Description of PR explains the context of change
• Unit tests cover the change, no broken tests
• No static analysis warnings (Codacy etc.)
• Documentation update ('available in the unstable snapshot' warning if necessary)
• Changes file inside site/dat/docs/changes directory, one-line note of change inside

[codecov]

Codecov Report

❌ Patch coverage is 88.05970% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.81%. Comparing base (a40dab9) to head (3d95adf).

Files with missing lines	Patch %	Lines
bzt/modules/javascript.py	87.70%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1921      +/-   ##
==========================================
+ Coverage   89.73%   89.81%   +0.08%     
==========================================
  Files          70       70              
  Lines       19597    19664      +67     
==========================================
+ Hits        17584    17659      +75     
+ Misses       2013     2005       -8     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.