fix: ingress LB status records

[tao12345666333]

Signed-off-by: Jintao Zhang zhangjintao9020@gmail.com

Please answer these questions before submitting a pull request

• Why submit this pull request?

• Bugfix

• New feature provided

• Improve performance

• Backport patches

• Related issues

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Bugfix

• Description

When updating the status, it should carry its generation

• How to fix?

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New feature or improvement

• Describe the details and related test reports.

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Backport patches

• Why need to backport?

• Source branch

• Related commits and pull requests

• Target branch

[codecov-commenter]

Codecov Report

Merging #788 (2032d88) into master (1bbadf0) will decrease coverage by 0.29%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #788      +/-   ##
==========================================
- Coverage   32.42%   32.12%   -0.30%     
==========================================
  Files          65       66       +1     
  Lines        6872     6876       +4     
==========================================
- Hits         2228     2209      -19     
- Misses       4396     4412      +16     
- Partials      248      255       +7     

Impacted Files	Coverage Δ
pkg/ingress/status.go	0.00% <0.00%> (ø)
pkg/apisix/plugin.go	80.00% <0.00%> (-20.00%)	⬇️
pkg/apisix/cluster.go	30.02% <0.00%> (-3.31%)	⬇️
pkg/apisix/route.go	36.91% <0.00%> (-2.02%)	⬇️
test/e2e/e2e.go	100.00% <0.00%> (ø)

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