pass existing context without using TODO()

[googs1025]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

• Solve TODO, pass existing context without using TODO()
• fix typo

Which issue(s) this PR fixes:

Fixes #
None

Special notes for your reviewer:

None

Does this PR introduce a user-facing change?

None

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[Huang-Wei]

Thanks @googs1025 . Could you also fix context.Background() in non-test code? (we can fix tests later)

pkg/capacityscheduling/capacity_scheduling.go
140:	elasticQuotaInformer, err := dynamicCache.GetInformer(context.Background(), &v1alpha1.ElasticQuota{})
705:		if err := c.client.List(context.Background(), &eqList, client.InNamespace(pod.Namespace)); err != nil {

pkg/noderesourcetopology/cache/overreserve.go
67:	if err := client.List(context.Background(), nrtObjs); err != nil {
229:		if err := ov.client.Get(context.Background(), types.NamespacedName{Name: nodeName}, nrtCandidate); err != nil {

pkg/noderesourcetopology/podprovider/podprovider.go
47:	ctx := context.Background()

[googs1025]

Thanks @googs1025 . Could you also fix context.Background() in non-test code? (we can fix tests later)

pkg/capacityscheduling/capacity_scheduling.go
140:	elasticQuotaInformer, err := dynamicCache.GetInformer(context.Background(), &v1alpha1.ElasticQuota{})
705:		if err := c.client.List(context.Background(), &eqList, client.InNamespace(pod.Namespace)); err != nil {

pkg/noderesourcetopology/cache/overreserve.go
67:	if err := client.List(context.Background(), nrtObjs); err != nil {
229:		if err := ov.client.Get(context.Background(), types.NamespacedName{Name: nodeName}, nrtCandidate); err != nil {

pkg/noderesourcetopology/podprovider/podprovider.go
47:	ctx := context.Background()

done. I have also made changes to some related test cases.
ctx is passed from the outermost layer.

[Huang-Wei]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: googs1025, Huang-Wei

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