Add validate egress.to.namespaces.match of AntreaClusterNetworkPolicy rules

[qiyueyao]

This is an addition to Validate namespaces.match of AntreaClusterNetworkPolicy rules #3109, the PR validated ingress.from, this PR adds the same validation to egress.to.

Signed-off-by: Qiyue Yao yaoq@vmware.com

[codecov-commenter]

Codecov Report

Merging #3727 (19033aa) into main (8f451f7) will decrease coverage by 7.18%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3727      +/-   ##
==========================================
- Coverage   64.44%   57.25%   -7.19%     
==========================================
  Files         278      392     +114     
  Lines       39513    56451   +16938     
==========================================
+ Hits        25463    32323    +6860     
- Misses      12068    21679    +9611     
- Partials     1982     2449     +467     

Flag	Coverage Δ
e2e-tests	46.19% <ø> (?)
integration-tests	38.02% <ø> (?)
kind-e2e-tests	51.84% <ø> (-0.51%)	⬇️
unit-tests	43.83% <ø> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
pkg/controller/egress/store/egressgroup.go	1.72% <0.00%> (-54.32%)	⬇️
pkg/agent/flowexporter/utils.go	51.06% <0.00%> (-25.54%)	⬇️
pkg/agent/multicast/mcast_controller.go	45.98% <0.00%> (-21.47%)	⬇️
pkg/agent/route/route_linux.go	30.17% <0.00%> (-19.63%)	⬇️
pkg/agent/util/net.go	32.88% <0.00%> (-18.67%)	⬇️
pkg/agent/openflow/pod_connectivity.go	52.45% <0.00%> (-15.86%)	⬇️
pkg/controller/ipam/antrea_ipam_controller.go	63.63% <0.00%> (-15.45%)	⬇️
pkg/apiserver/handlers/endpoint/handler.go	56.52% <0.00%> (-13.05%)	⬇️
pkg/agent/util/ipset/ipset.go	59.45% <0.00%> (-8.11%)	⬇️
pkg/agent/openflow/service.go	78.16% <0.00%> (-5.75%)	⬇️
... and 142 more

[Dyanngg]

lgtm

[tnqn]

LGTM

[tnqn]

/skip-conformance
/skip-networkpolicy
/test-e2e