fix: empty out the aliases on recreation

[simskij]

This PR makes sure old network aliases are truncated as containers get recreated.

resolves #521

[codecov]

Codecov Report

Patch coverage: 78.57% and project coverage change: +0.09% 🎉

Comparison is base (dfe4346) 67.47% compared to head (fed7774) 67.57%.
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1699      +/-   ##
==========================================
+ Coverage   67.47%   67.57%   +0.09%     
==========================================
  Files          26       26              
  Lines        2346     2359      +13     
==========================================
+ Hits         1583     1594      +11     
- Misses        666      668       +2     
  Partials       97       97              

Files Changed	Coverage Δ
pkg/container/client.go	47.55% <78.57%> (+1.35%)	⬆️

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[piksel]

I doubt we would need to provide any aliases in the config when creating, so clearing it should be fine. There should be a test of course, though 😁

[piksel]

LGTM!