ci: pin ubuntu runner to 24.04 in workflows #14294

Job	Run time
L10n/Locale Support Verification	8m 11s
L10n/Fluent Syntax Check	15s
L10n/French Integration Test	1m 40s
L10n/Multi-call Binary Install Test (macos-latest, feat_os_unix)	5m 12s
L10n/Installation Test (Make & Cargo) (macos-latest, feat_os_unix)	5m 58s
L10n/Installation Test (Make & Cargo) (ubuntu-24.04, feat_os_unix)	7m 33s
L10n/Clap Error Localization Test	1m 48s
L10n/Locale Embedding - Multicall Binary	2m 36s
L10n/Multi-call Binary Install Test (ubuntu-24.04, feat_os_unix)	4m 48s
L10n/Build and Test (ubuntu-24.04, feat_os_unix)	3m 0s
L10n/Build and Test (macos-latest, feat_os_unix)	2m 58s
L10n/Locale Embedding - Cat Utility	43s
L10n/Locale Embedding - Cargo Install	49s
L10n/Build and Test (windows-latest, feat_os_windows)	6m 27s
L10n/Embedded Locale Regression Test	1m 35s
L10n/Locale Embedding - Ls Utility	1m 3s
	54m 36s

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