feature/asynchron ftp upload #3287

Job	Run time
check-install-script	20s
run-install-script (ubuntu-latest, sudo ./install-photobooth.sh --username="$(whoami)" --branch="...	3m 45s
run-install-script (ubuntu-latest, sudo ./install-photobooth.sh --username="$(whoami)" --silent)	4m 52s
	8m 57s

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