🐛 Alphabetically sorting release tool output

[Dhairya-Arora01]

What this PR does / why we need it: Implemented sorting function to alphabetically sort release tool output irrespective of whether the first letter is capital or small as stated in #9010

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #9010

[k8s-ci-robot]

Hi @Dhairya-Arora01. 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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[sbueringer]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: ec3c51d7c1431fd90e0cd03fd49afd61bdeac69f

[sbueringer]

/ok-to-test

[sbueringer]

/cherry-pick release-1.5

[k8s-infra-cherrypick-robot]

@sbueringer: once the present PR merges, I will cherry-pick it on top of release-1.5 in a new PR and assign it to you.

In response to this:

/cherry-pick release-1.5

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[sbueringer]

/assign @killianmuldoon

[killianmuldoon]

Thanks!

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: killianmuldoon

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[k8s-infra-cherrypick-robot]

@sbueringer: new pull request created: #9060

In response to this:

/cherry-pick release-1.5

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.

[killianmuldoon]

/area release