Ensure deletion of pods is handled

[Monokaix]

/kind bug

When a watch pod deletion event was missed while disconnected from apiserver, delta fifo in informer will generate a new delete event, and a DeletedFinalStateUnknown obj will be enqueue and reprocessed, here is this logic：
https://github.com/kubernetes/kubernetes/blob/297dc976b96895332f8e800c531f47d5cca68bfd/staging/src/k8s.io/client-go/tools/cache/delta_fifo.go#L665

We have considered the case in DeletePod event handler:

volcano/pkg/scheduler/cache/event_handlers.go

Line 269 in bed4a04

case cache.DeletedFinalStateUnknown:

but not in filter func, which will lead event handler have no chance to handle pod deletion miss event, so we should check in filter func first.

[jiangkaihua]

/lgtm Thank you for contribution!

[william-wang]

/lgtm
/approve

[volcano-sh-bot]

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