Fix typos in RayJob and RayCluster head group metadata paths

[kshalot]

What type of PR is this?

/kind bug

What this PR does / why we need it:

While looking into RayJob validations for #7061, I noticed this weird path using a comma. Unless I'm missing something very obscure, this is a small typo. I figured I'll fix it.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Fix malformed annotations paths being reported for `RayJob` and `RayCluster` head group specs.

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[k8s-ci-robot]

Hi @kshalot. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[mimowo]

/ok-to-test

[mimowo]

@kshalot thanks for the PR. Since this has user-observable consequences please describe briefly in the release note.

[tenzen-y]

Thank you 👍
/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kshalot, tenzen-y

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[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 656bf0fd736b0627c00239cd3c77f1e7723d5894

[tenzen-y]

/cherry-pick release-0.13
/cherry-pick release-0.14

[k8s-infra-cherrypick-robot]

@tenzen-y: once the present PR merges, I will cherry-pick it on top of release-0.13, release-0.14 in new PRs and assign them to you.

In response to this:

/cherry-pick release-0.13
/cherry-pick release-0.14

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]

@tenzen-y: new pull request created: #7184

In response to this:

/cherry-pick release-0.13
/cherry-pick release-0.14

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]

@tenzen-y: new pull request created: #7185

In response to this:

/cherry-pick release-0.13
/cherry-pick release-0.14

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.