fix: Removed $HOME/ prefix from global filename path

[alyvusal]

Summary

Fixes:

1. Fixes issue for ASDF_DEFAULT_TOOL_VERSIONS_FILENAME when location defined outside /home/user folder

Other Information

[Stratus3D]

Hi @alyvusal thanks for the PR! However, I believe the existing code was correct.

 file_name="$(asdf_tool_versions_filename)"

The function asdf_tool_versions_filename returns the .tool-versions filename. The filename is just the name of the file, not the full path to the file on the file system. A user might customize it to a different filename, but it must always be a filename because asdf climbs up directories on the file system and looks for files matching this filename in every directory on it's way to /. So when we need to come up with the "global" version file we do this:

file="$HOME/$file_name"

Which is correct if the user has set the default tool versions filename setting to a filename.

If there is something here I missed please let me know.

[alyvusal]

My intention here was toremove harcoded location of .tool-versions, my change allows to use custom location.