feat: use new mail archive search API for review app lookups

[rpcross]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 5 lines in your changes missing coverage. Please review.

Project coverage is 88.79%. Comparing base (1b4afc9) to head (480e60a).
Report is 58 commits behind head on main.

Files with missing lines	Patch %	Lines
ietf/review/mailarch.py	85.71%	3 Missing ⚠️
ietf/doc/views_review.py	77.77%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8788      +/-   ##
==========================================
- Coverage   88.80%   88.79%   -0.01%     
==========================================
  Files         314      314              
  Lines       41213    41401     +188     
==========================================
+ Hits        36601    36764     +163     
- Misses       4612     4637      +25     

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[jennifer-richards]

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