Avoid duplicate code in install_warpy.sh

[hornhaut]

In the warpy installer script in lines 210 and 231 a "v" is missing the zip file location path for windows qupath. It says:
https://github.com/qupath/qupath/releases/download/v${qupath_version}/QuPath-${qupath_version}-Windows.zip
while is should say:
https://github.com/qupath/qupath/releases/download/v${qupath_version}/QuPath-v${qupath_version}-Windows.zip
(there is a "v" before the second ${qupath_version} here :) )

best
hornhaut

[NicoKiaru]

Thanks! It's fixed in 11fd377

I should avoid the duplicated code when installing QuPath (thus I changed the issue title