[release-1.22] Ambient CNI informer: K8S job pods must be handled uniquely

[istio-testing]

Manual cherrypick required.

#51429 failed to apply on top of branch "release-1.22":

Applying: Skip pods with duplicate IPs when adding to host probe exclusion set
Using index info to reconstruct a base tree...
M	cni/pkg/nodeagent/net.go
M	cni/pkg/nodeagent/net_test.go
Falling back to patching base and 3-way merge...
Auto-merging cni/pkg/nodeagent/net_test.go
Auto-merging cni/pkg/nodeagent/net.go
Applying: Lint
Applying: Relnote
Applying: Actually exclude terminated job pods
Applying: Shorten log
Applying: Derp
Applying: More robust checks
Applying: Use old pod
Applying: Test
Applying: More test
Applying: Lints
Applying: Smarter IP add
Using index info to reconstruct a base tree...
M	cni/pkg/nodeagent/net.go
M	cni/pkg/nodeagent/net_test.go
Falling back to patching base and 3-way merge...
Auto-merging cni/pkg/nodeagent/net_test.go
CONFLICT (content): Merge conflict in cni/pkg/nodeagent/net_test.go
Auto-merging cni/pkg/nodeagent/net.go
CONFLICT (content): Merge conflict in cni/pkg/nodeagent/net.go
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0012 Smarter IP add
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".