[11] Move the Web 2 group over to the tox gen script

[sentrivana]

• remove hardcoded entries for falcon, starlite, pyramid, bottle, tornado from the tox template
• remove them from the ignore list in populate_tox.py
• run populate_tox.py to fill in entries for them
• run split_gh_tox_actions.py to generate the CI yaml files so that they correspond to the new tox.ini

The remaining integrations in this group are not trivial to port to the script, I'll do this step by step in follow-up PRs.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.52%. Comparing base (8f22def) to head (1cbc613).
Report is 1 commits behind head on master.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3981      +/-   ##
==========================================
- Coverage   79.56%   79.52%   -0.04%     
==========================================
  Files         140      140              
  Lines       15510    15510              
  Branches     2628     2628              
==========================================
- Hits        12340    12335       -5     
- Misses       2336     2337       +1     
- Partials      834      838       +4     

see 3 files with indirect coverage changes