Fix zwift install error with docker

[glennvl]

Summary

Checking the ownership of only the mount point itself appears to be not enough.

Fixes zwift install error when using docker:

wine: '/home/user/.wine' is not owned by you.

This is probably also the reason why the build from scratch workflow failed.

I remember that we discussed that this change was needed a while ago. And I thought it was actually already implemented. But I can't seem to find it in the git history, issues, discussions or pull requests.

[netbrain]

Hm weird..

[glennvl]

Hm weird..

Found where I read it 🙂.

@pdelagrave discovered this issue and mentioned it in #334.

entrypoint.sh

• Fix ownership check depth (maxdepth 0 → maxdepth 1): mkdir -p $ZWIFT_HOME runs as root before privilege drop and creates .wine owned by root. The previous maxdepth 0 check on /home/user passed (it is owned by user) while missing the root-owned .wine subdirectory, causing Wine to refuse to start with "wine: '/home/user/.wine' is not owned by you".