feat: warn on deprecated or unconfigured lb type

[lukasmetzner]

feat(load-balancer): warn on deprecated load balancer type
feat(load-balancer): warn on configured load balancer type

[codecov]

Codecov Report

❌ Patch coverage is 77.63158% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.30%. Comparing base (cfbbbd9) to head (e43accf).

Files with missing lines	Patch %	Lines
internal/hcops/load_balancer.go	65.11%	10 Missing and 5 partials ⚠️
internal/hcops/testing.go	77.77%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1313      +/-   ##
==========================================
+ Coverage   71.25%   71.30%   +0.04%     
==========================================
  Files          27       29       +2     
  Lines        2804     2868      +64     
==========================================
+ Hits         1998     2045      +47     
- Misses        622      633      +11     
- Partials      184      190       +6     

Flag	Coverage Δ
e2e	44.65% <50.00%> (-0.09%)	⬇️
unit	67.60% <72.36%> (-0.01%)	⬇️

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