7zip: add at 26.01

[clintre]

Summary
Replace p7zip due to security and lack of maintenance

Security:

• CVE-2026-48095

Test Plan

Installed Peazip
Uninstalled p7zip
Installed 7Zip
Tested functionality through peazip
Verified binaries
From terminal tested several different formats

Needs more testing before considered ready

Checklist

• Package was built and tested against unstable
• This change could gainfully be listed in the weekly sync notes once merged
• I agree to license this contribution and all my previous contributions under the licensing terms in LICENSE.md and have the power and authority to grant those licenses.

[clintre]

Ok, made changes based on the Fedora spec. Still probably needs some changes partly due to some of my ignorance of the ypkg side of things still.

[EbonJaeger]

As far as I can see, this looks fine, now.

[clintre]

Ok I have ran testing across several archives as well as using Peazip which is working as expected. I modified the patch for Solus. If there is anything else, let me know.

[EbonJaeger]

Since this is replacing p7zip, all of the packages that depend on p7zip need to be updated to depend on the new 7zip package. p7zip and p7zip-dbginfo should also be deprecated.

[clintre]

Alright that is all the packages that depended on p7zip.

[EbonJaeger]

Could you add a commit at the end deprecating p7zip and p7zip-dbginfo? That's the only thing this is missing now.

[clintre]

I have not done that before. Is there a link to a process for that? Happy to do it, to learn.

[EbonJaeger]

There is, actually! https://help.getsol.us/docs/packaging/procedures/release-processes#deprecating-a-package

Step 1 can be skipped because you're already in a branch. You can also delete the old package recipe directory at the same time.

[clintre]

Alright hopefully should be all good.

[Jaredy899]

Also pcsx2 has p7zip as a builddep.

[clintre]

Ok added that as well. Grepped to see if any more existed and looks good.