Fix typo in metrics code comment

[Nikhil-Ladha]

Fixed typo in word collector under metrics component and make the code-spell-check CI stable

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nbalacha, Nikhil-Ladha

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[agarwal-mudit]

/cherry-pick release-4.14

[openshift-cherrypick-robot]

@agarwal-mudit: new pull request created: #2209

In response to this:

/cherry-pick release-4.14

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/test-infra repository.

[Nikhil-Ladha]

/cherry-pick release-4.12

[Nikhil-Ladha]

/cherry-pick release-4.13

[openshift-cherrypick-robot]

@Nikhil-Ladha: #2205 failed to apply on top of branch "release-4.12":

Applying: Fix typo in metrics code comment
Using index info to reconstruct a base tree...
M	metrics/internal/collectors/registry.go
Falling back to patching base and 3-way merge...
Auto-merging metrics/internal/collectors/registry.go
CONFLICT (content): Merge conflict in metrics/internal/collectors/registry.go
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 Fix typo in metrics code comment
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherry-pick release-4.12

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.

[openshift-cherrypick-robot]

@Nikhil-Ladha: new pull request created: #2236

In response to this:

/cherry-pick release-4.13

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.