refactor: unified factory and informer

[AlinsRan]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches

What this PR does / why we need it:

fix:

With the increase of functional requirements, the interdependence between resources is inevitable. We should unify the informer structure to avoid errors caused by resources not being ready.

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[codecov-commenter]

Codecov Report

Merging #1530 (8698487) into master (d22a6fc) will increase coverage by 0.18%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #1530      +/-   ##
==========================================
+ Coverage   41.22%   41.41%   +0.18%     
==========================================
  Files          85       85              
  Lines        7440     7406      -34     
==========================================
  Hits         3067     3067              
+ Misses       4020     3986      -34     
  Partials      353      353              

Impacted Files	Coverage Δ
pkg/providers/ingress/ingress.go	4.09% <0.00%> (+0.10%)	⬆️
pkg/providers/ingress/provider.go	0.00% <0.00%> (ø)
pkg/providers/k8s/pod/provider.go	0.00% <ø> (ø)

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[tao12345666333]

LGTM

[tao12345666333]

I communicated offline with @AlinsRan who has been testing this PR for a long time.

So I think it's safe to merge it now

[tao12345666333]

I think we should add some performance testing, and get related metrics and reports.