Don't abort if already installed

[bersbersbers]

Description

I'd argue that if scoop is installed already, the installer should not abort since that would abort CI jobs.

Possible Solution

Exit gracefully here:

Install/install.ps1

Lines 151 to 154 in 656e17b

	# Test if scoop is installed, by checking if scoop command exists.
	if (Test-CommandAvailable('scoop')) {
	Deny-Install "Scoop is already installed. Run 'scoop update' to get the latest version."
	}