feat(decompress): Use innounp-unicode as default Inno Setup Unpacker

[niheaven]

Description

innounp could not handle Inno Setup v6.3+, and there's many decompress error for this new version installer.

There's a forked edition of innounp by J. Rathlev (https://www.rathlev-home.de/tools/prog-e.html#unpack), and I added it in ScoopInstaller/Versions#1809, and this PR use that edition as default if installed.

Motivation and Context

This will fix many issues related to ollama and inno-setup

• Relates to ollama: Fix install error Main#5920

How Has This Been Tested?

Install innounp-unicode and then:

Checklist:

• I have read the Contributing Guide.
• I have ensured that I am targeting the develop branch.
• I have updated the documentation accordingly.
• I have updated the tests accordingly.
• I have added an entry in the CHANGELOG.