fix(lb): unnecessary reattach of private networks

[yfodil]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.00000% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 75.38%. Comparing base (fe86049) to head (0b4d8b6).
Report is 24 commits behind head on master.

Files	Patch %	Lines
internal/services/lb/helpers_lb.go	86.20%	2 Missing and 2 partials ⚠️
internal/services/lb/lb.go	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2531      +/-   ##
==========================================
+ Coverage   71.43%   75.38%   +3.94%     
==========================================
  Files         277      278       +1     
  Lines       35875    30728    -5147     
==========================================
- Hits        25628    23164    -2464     
+ Misses       8028     5339    -2689     
- Partials     2219     2225       +6     

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