[PodSetInfo] Skip duplicate Tolerations during merge.

[trasc]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Skip duplicate Tolerations during PodSetInfo merge.

Which issue(s) this PR fixes:

Fixes #2427

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Skip duplicate Tolerations when an admission check introduces a toleration that the job also set.

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[trasc]

/cc @alculquicondor

[alculquicondor]

What is the user-facing behavior? The release note talks in terms of code.

[alculquicondor]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 6851bd34220aa895f23f528d4db28d10c21bb478

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alculquicondor, trasc

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[alculquicondor]

/release-note-edit

Skip duplicate Tolerations when an admission check introduces a toleration that the job also set.

[alculquicondor]

/cherry-pick release-0.7

[k8s-infra-cherrypick-robot]

@alculquicondor: once the present PR merges, I will cherry-pick it on top of release-0.7 in a new PR and assign it to you.

In response to this:

/cherry-pick release-0.7

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[k8s-infra-cherrypick-robot]

@alculquicondor: new pull request created: #2499

In response to this:

/cherry-pick release-0.7

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.