fix: controller err handler should ignore not found error

[lingsamuel]

Signed-off-by: Ling Samuel lingsamuelgrace@gmail.com

Type of change:

• Bugfix

What this PR does / why we need it:

Fixes: #810

[codecov-commenter]

Codecov Report

Merging #893 (c41dad4) into master (f84a083) will decrease coverage by 0.33%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #893      +/-   ##
==========================================
- Coverage   32.05%   31.71%   -0.34%     
==========================================
  Files          71       72       +1     
  Lines        7775     7861      +86     
==========================================
+ Hits         2492     2493       +1     
- Misses       5009     5094      +85     
  Partials      274      274              

Impacted Files	Coverage Δ
pkg/ingress/apisix_cluster_config.go	0.00% <0.00%> (ø)
pkg/ingress/apisix_consumer.go	0.00% <0.00%> (ø)
pkg/ingress/apisix_pluginconfig.go	0.00% <0.00%> (ø)
pkg/ingress/apisix_route.go	0.00% <0.00%> (ø)
pkg/ingress/apisix_tls.go	0.00% <0.00%> (ø)
pkg/ingress/apisix_upstream.go	0.00% <0.00%> (ø)
pkg/ingress/endpoint.go	0.00% <0.00%> (ø)
pkg/ingress/endpointslice.go	0.00% <0.00%> (ø)
pkg/ingress/gateway.go	0.00% <0.00%> (ø)
pkg/ingress/ingress.go	6.59% <0.00%> (-0.18%)	⬇️
... and 2 more

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[tao12345666333]

LGTM

[gxthrj]

LGTM， should ignore the NOT FOUND error.

[tao12345666333]

Please resolve conflicts. Thanks! @lingsamuel

[lingsamuel]

@tao12345666333 done