Add Copilot instructions for release PRs #10017

Job	Run time
check-codeql-versions	44s
analyze-actions	1m 2s
analyze-javascript (windows-2022, linked)	6m 10s
analyze-javascript (ubuntu-22.04)	4m 11s
analyze-javascript (ubuntu-22.04, linked)	4m 5s
analyze-javascript (windows-2025)	6m 56s
analyze-javascript (ubuntu-24.04)	4m 5s
analyze-javascript (windows-2022)	6m 30s
analyze-javascript (windows-2025, linked)	5m 55s
analyze-javascript (macos-13)	8m 8s
analyze-javascript (ubuntu-24.04, linked)	4m 5s
analyze-javascript (macos-14, linked)	5m 52s
analyze-javascript (macos-13, linked)	8m 12s
analyze-javascript (macos-14)	6m 16s
analyze-javascript (macos-15, linked)	5m 26s
analyze-javascript (macos-15)	4m 57s
	1h 22m 34s

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