Fix PR template

[piyush-garg]

This will fix PR template failing to detect
release note block

Submitter Checklist

As the author of this PR, please check off the items in this checklist:

• Has Docs included if any changes are user facing
• Has Tests included if any functionality added or changed
• Follows the commit message standard
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  functionality, content, code)
• Has a kind label. You can add one by adding a comment on this PR that contains /kind <type>. Valid types are bug, cleanup, design, documentation, feature, flake, misc, question, tep
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Release Notes

Fix PR template

[tekton-robot]

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[piyush-garg]

/kind misc

[jerop]

thanks @piyush-garg - see related PR: #5308

[tekton-robot]

@piyush-garg: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-tekton-pipeline-alpha-integration-tests	b52b71f	link	true	/test pull-tekton-pipeline-alpha-integration-tests

Full PR test history. Your PR dashboard.

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[piyush-garg]

thanks @piyush-garg - see related PR: #5308

Aah ohk, I did not see that. I will close this PR. Thanks