feat: report on group chair history

[rjsparks]

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 9.37500% with 29 lines in your changes are missing coverage. Please review.

Project coverage is 88.64%. Comparing base (187c2c5) to head (2ac3362). Report is 99 commits behind head on main.

:exclamation: Current head 2ac3362 differs from pull request most recent head 34d4c16. Consider uploading reports for the commit 34d4c16 to get more accurate results

Files	Patch %	Lines
ietf/group/utils.py	9.37%	29 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6299      +/-   ##
==========================================
- Coverage   88.98%   88.64%   -0.35%     
==========================================
  Files         291      290       -1     
  Lines       40717    40447     -270     
==========================================
- Hits        36233    35853     -380     
- Misses       4484     4594     +110     

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[rjsparks]

closing this as asleep - it can be reopened if needed.