Update Rust crate async-compression to v0.4.8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
async-compression	dependencies	patch	=0.4.7 -> =0.4.8

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Release Notes

Nullus157/async-compression (async-compression)

v0.4.8

• bump dep brotli from 3.3 to 4.0

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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.64%. Comparing base (ca92ae8) to head (a49cdff).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8405   +/-   ##
=======================================
  Coverage   87.64%   87.64%           
=======================================
  Files         272      272           
  Lines       26342    26342           
=======================================
  Hits        23087    23087           
  Misses       3255     3255           

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