Handle user errors for invalid `UserConfig`s and missing query files #10610

Job	Run time
analyze-other (python)	57s
analyze-other (actions)	52s
check-codeql-versions	34s
analyze-javascript (ubuntu-22.04, linked)	4m 3s
analyze-javascript (ubuntu-22.04)	3m 58s
analyze-javascript (ubuntu-24.04)	4m 12s
analyze-javascript (windows-2022)	6m 17s
analyze-javascript (windows-2022, linked)	6m 12s
analyze-javascript (macos-14, linked)	7m 18s
analyze-javascript (windows-2025, linked)	5m 49s
analyze-javascript (macos-15)	9m 44s
analyze-javascript (ubuntu-24.04, linked)	4m 9s
analyze-javascript (macos-14)	7m 12s
analyze-javascript (macos-15, linked)	7m 36s
analyze-javascript (macos-13, linked)	8m 51s
analyze-javascript (windows-2025)	6m 11s
analyze-javascript (macos-13)	9m 10s
	1h 33m 5s

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