Fix AppImageUpdate information #374

Job	Run time
Ubuntu (x86_64) release	1m 44s
Ubuntu (x86_64) debug	1m 12s
Windows (x86_64) release (crossbuild from Ubuntu x86_64, MinGW-w64)	2m 13s
macOS (x86_64) release	1m 35s
	6m 44s

Provide feedback