fix version typo of pod namespace indexer

[ahutsunshine]

What type of PR is this?
/kind documentation

What this PR does / why we need it:
Fix version document typo which is token in pod namespace indexer feature.

Which issue(s) this PR fixes:
#121906

[k8s-ci-robot]

Hi @ahutsunshine. Thanks for your PR.

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[ahutsunshine]

@wojtek-t @dims @thockin Could someone help review the PR? Thanks. cc @MadhavJivrajani #121906 (comment)

[thockin]

Thanks!

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: ff311738d3423d8c31388bd933e34e6de203615a

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahutsunshine, thockin

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[pacoxu]

/sig api-machinery
/kind cleanup
/release-note-none
/ok-to-test
/retest

[HirazawaUi]

/retest

[cici37]

/triage accepted