feat: Add a command line option to run the update-check. #1890

Job	Run time
Validate PR	6s
Check for translatable strings	17s
Verify release/signatures	7s
Update nightly release tag	4s
Clang-Tidy	6m 47s
Alpine (full, Debug)	3m 12s
Debian (minimal, Debug)	1m 57s
Alpine (static) (Release)	2m 2s
Fedora with ASAN (full, Debug)	2m 37s
Ubuntu LTS (full, Release)	3m 0s
macOS user (x86_64)	6m 9s
Docs	3m 24s
AppImage on Alpine (full, Release)	2m 39s
Android (arm64-v8a, Release, 6.2.4)	2m 45s
macOS distributable (arm64)	2m 30s
Flatpak	3m 30s
Windows (x86_64, Release)	4m 26s
Test macOS distributable (arm64)	14s
Test AppImage	21s
Test Flatpak	1m 39s
Test Windows (x86_64, Release)	44s
	48m 30s

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