fix: const SocketAddrs for default values

[dvdplm]

The TceConfig struct has default values used during deserializartion. No need to parse strings
for that and instead we can use const and create the SocketAddrs we need straight up.

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (7d0416e) 60.81% compared to head (b356929) 60.83%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #329      +/-   ##
==========================================
+ Coverage   60.81%   60.83%   +0.01%     
==========================================
  Files         225      225              
  Lines       12177    12189      +12     
==========================================
+ Hits         7406     7415       +9     
- Misses       4771     4774       +3     

Files	Coverage Δ
crates/topos/src/config/tce.rs	65.57% <100.00%> (+2.41%)	⬆️

... and 6 files with indirect coverage changes

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