Remove `add-snippets` input #10721

Job	Run time
check-codeql-versions	32s
analyze-other (actions)	1m 4s
analyze-other (python)	1m 3s
analyze-javascript (ubuntu-24.04, linked)	4m 30s
analyze-javascript (macos-13)	12m 26s
analyze-javascript (ubuntu-22.04, linked)	4m 22s
analyze-javascript (windows-2025)	8m 32s
analyze-javascript (windows-2022, linked)	5m 37s
analyze-javascript (windows-2022)	8m 25s
analyze-javascript (ubuntu-24.04)	4m 12s
analyze-javascript (macos-13, linked)	9m 11s
analyze-javascript (macos-15)	7m 30s
analyze-javascript (macos-14, linked)	8m 57s
analyze-javascript (macos-15, linked)	7m 7s
analyze-javascript (ubuntu-22.04)	4m 8s
analyze-javascript (macos-14)	7m 11s
analyze-javascript (windows-2025, linked)	5m 43s
	1h 40m 30s

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