Pin wpscan to 3.8.28 for Ruby 3.2 compat

[liquidsec]

Summary

• wpscan 4.0.0 (released 2026-05-19) bumped its minimum Ruby requirement to >= 3.3.
• Ubuntu 24.04 (the GitHub Actions runner image) ships Ruby 3.2.3, so every CI run since the release fails on --install-all-deps → test_cli_args.
• Pins to 3.8.28 (the last release that supports Ruby >= 3.0) to unblock CI. Bump the pin when the runners ship Ruby 3.3+.

[github-actions]

🚀 Performance Benchmark Report

⚠️ No current benchmark data available

This might be because:

• Benchmarks failed to run
• No benchmark tests found
• Dependencies missing

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90%. Comparing base (cc7e561) to head (c0774fb).
⚠️ Report is 2 commits behind head on dev.

Additional details and impacted files

@@          Coverage Diff          @@
##             dev   #3111   +/-   ##
=====================================
- Coverage     90%     90%   -0%     
=====================================
  Files        444     444           
  Lines      38376   38376           
=====================================
- Hits       34324   34321    -3     
- Misses      4052    4055    +3     

☔ 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.