Suggest: auto switch to innoextract for gog installers.

[eebssk1]

InnoUnp now no longer properly extract current gog game installers. The extract files are all binary slices which can not be used directly. Consider detect gog installers and extract with innoextract which support such format. You can detect the installer by checking the file information,such as copyright or the digital certificate.

[raddyst]

InnoUnp now no longer properly extract current gog game installers.

https://github.com/Bioruebe/UniExtract2/issues/396#issuecomment-2262084487

new version https://www.rathlev-home.de/tools/download/innounp-1.zip