Fix Pydantic models for health report

[cthoyt]

This PR fixes an issue where old runs in the Bioregistry health report didn't validate against the current pydantic model. I wrote a script that calculated the missing data and also made "delta" optional since the first item on the list will never have a delta. It also re-runs the health report

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 40.43%. Comparing base (7095608) to head (a09bbd1).
Report is 3 commits behind head on main.

Files	Patch %	Lines
src/bioregistry/health/check_providers.py	0.00%	8 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1057   +/-   ##
=======================================
  Coverage   40.43%   40.43%           
=======================================
  Files         149      149           
  Lines        8273     8273           
  Branches     1916     1916           
=======================================
  Hits         3345     3345           
  Misses       4719     4719           
  Partials      209      209           

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