fix: workaround magic false positives

[rjsparks]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 2 lines in your changes missing coverage. Please review.

Project coverage is 88.74%. Comparing base (e16d568) to head (82d61e6).
Report is 24 commits behind head on main.

Files with missing lines	Patch %	Lines
ietf/utils/mime.py	71.42%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9207      +/-   ##
==========================================
+ Coverage   88.72%   88.74%   +0.01%     
==========================================
  Files         321      320       -1     
  Lines       41851    41646     -205     
==========================================
- Hits        37134    36959     -175     
+ Misses       4717     4687      -30     

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[jennifer-richards]

Probably not fair to blame OpenSUSE 15.1 in the comment any more :-)