Update flaky volume toleration regex to include projected volumes

[liggitt]

What type of PR is this?

/kind flake

What this PR does / why we need it:

Injected service account tokens changed from secret-based to projected-token based by default in #95667, which merged 2/18

That coincides with this flake starting: https://storage.googleapis.com/k8s-gubernator/triage/index.html?date=2021-02-27&text=volumes%2Fkubernetes.io~projected

This test already tolerated secret volume setup errors, until #88766 is resolved. The regex should be expanded to accomodate projected volume tokens until that issue is resolved.

Which issue(s) this PR fixes:

Fixes #99599

NONE

/cc @zshihang @smarterclayton @jkaniuk @ehashman

[k8s-ci-robot]

@liggitt: This issue is currently awaiting triage.

If a SIG or subproject determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

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/test-infra repository.

[hasheddan]

/lgtm

I've been tracking #88766, is there any WIP on resolving it at this point?

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hasheddan, liggitt

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• test/e2e/node/OWNERS [liggitt]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment