Fix authconfig annotations reconciliation

[eguzki]

The authpolicy controller does not enforce any annotation, thus, it should not be part of the mutator

[codecov]

Codecov Report

Merging #359 (a52a6fe) into main (f17aadb) will increase coverage by 0.15%.
The diff coverage is 75.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #359      +/-   ##
==========================================
+ Coverage   64.64%   64.80%   +0.15%     
==========================================
  Files          35       35              
  Lines        3804     3804              
==========================================
+ Hits         2459     2465       +6     
+ Misses       1147     1139       -8     
- Partials      198      200       +2     

Flag	Coverage Δ
integration	69.63% <75.00%> (+0.29%)	⬆️
unit	59.32% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
api/v1beta1 (u)	∅ <ø> (∅)
pkg/common (u)	76.92% <ø> (ø)
pkg/istio (u)	30.24% <ø> (ø)
pkg/log (u)	31.81% <ø> (ø)
pkg/reconcilers (u)	33.21% <ø> (ø)
pkg/rlptools (u)	56.46% <ø> (ø)
controllers (i)	69.63% <75.00%> (+0.29%)	⬆️

Files	Coverage Δ
controllers/authpolicy_authconfig.go	66.31% <75.00%> (ø)

... and 5 files with indirect coverage changes