feat: improve performance of processing incoming messages

[bdraco]

No description provided.

[codecov]

Codecov Report

Patch coverage: 62.50% and project coverage change: -0.04% ⚠️

Comparison is base (b222552) 82.89% compared to head (1e12b97) 82.86%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #228      +/-   ##
==========================================
- Coverage   82.89%   82.86%   -0.04%     
==========================================
  Files          27       27              
  Lines        3251     3251              
  Branches      673      673              
==========================================
- Hits         2695     2694       -1     
- Misses        340      341       +1     
  Partials      216      216              

Files Changed	Coverage Δ
src/dbus_fast/__version__.py	0.00% <0.00%> (ø)
src/dbus_fast/message_bus.py	72.64% <71.42%> (-0.72%)	⬇️

... and 3 files with indirect coverage changes

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