docs(issue_template): remove the labels field from the proposal template

[kurosakishigure]

Signed-off-by: Shigure Kurosaki [email protected]

Summary of Changes

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Description

• What is the purpose of this PR?
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• What problem does it solve?
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• Are there any breaking changes or backwards compatibility issues?
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Related Issue

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Checklist

• I have read and followed the guidelines in CONTRIBUTING.md
• I have already updated the related examples accordingly (if applicable)
• I have written or updated relevant docs (if applicable)
• I have already updated the related CI config accordingly (if applicable)
• I have added or updated tests to cover my changes (if applicable)
• I have already updated the related build system accordingly (if applicable)
• I have reviewed my code for any potential issues

Additional Notes

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[Copilot]

PR Overview

This PR updates the GitHub issue template for proposals by removing the labels field that automatically applied the 'proposal' label.

• Removed the labels field from the proposal template
• Updated the YAML template file accordingly

Reviewed Changes

File	Description
.github/ISSUE_TEMPLATE/proposal.yml	Removed the labels field to simplify the proposal template

Copilot reviewed 1 out of 1 changed files in this pull request and generated no comments.