Fix: Treat unrecognized MIME types as binary in MediaType

[varshith257]

No description provided.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 61.13%. Comparing base (a20143d) to head (15a0f8a).
Report is 31 commits behind head on main.

Files with missing lines	Patch %	Lines
...c/main/scala/zio/http/codec/HttpContentCodec.scala	0.00%	2 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #13      +/-   ##
==========================================
- Coverage   65.08%   61.13%   -3.95%     
==========================================
  Files         161      161              
  Lines       10551    11388     +837     
  Branches     2024     2021       -3     
==========================================
+ Hits         6867     6962      +95     
- Misses       3684     4426     +742     

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