anki: update to 26.08.1, adopt.

[nazaradeh]

Testing the changes

• I tested the changes in this PR: YES
• Launched and used the app.

Local build testing

• I built this PR locally for my native architecture, (x86)
• I built this PR locally for these architectures (if supported. mark crossbuilds):
  • aarch64-musl

Notes

• Installation process changed as of commit ankitects/anki@0d7b3fdd (Anki 26.08): Now using Briefcase, hence the changes in the do_install() function.
• Updated commits for the two additional distfiles to the recommended commits which I found with this command:
  curl -s "https://api.github.com/repos/ankitects/anki/git/trees/26.08.1?recursive=1" | grep -A3 -B1 -E 'core-repo|qt-repo'
• This would be my first package adoption. With a lot of help from maintainers, I previously updated this package template to the version that is currently live on the repos (anki: update to 26.05. #61528). Before that, it was 6 years out of date, and others had given up on updating it during this period. In total I've had 4 PRs merged, each for different package updates, which hopefully is not too few. I promise to keep an eye on this package!

[nazaradeh]

I'd also like to have this issue reviewed and closed, please: #37930 (comment)

This bug is fixed as of the recent updated versions of Anki.