Filter tags to releases with assets

[safinn]

Fixes #7

Looked at the tags in the flyctl repository and tried to limit to the releases only, which contain assets to download. They create lots of tags that are not "releases".

• Filter to remove any tags that include a letter or begin with 4 digits. Their releases right now are of the format 0.2.104.
• Get the latest version from the API and after sorting, stop listing versions once the latest from the API is reached. This should guarantee there are assets to download. Currently there is a tag of 0.2.105 that matches the release version format but has no assets, is not marked as a release on Github and the API still returns 0.2.104 as the latest.

$ mise ls-remote flyctl
...
0.2.99
0.2.100
0.2.101
0.2.102
0.2.103
0.2.104

[chessmango]

Ooh, thanks! Been thinking about how to solve this, but time is... not my friend. Looks like just some shfmt left. :D

[safinn]

Thanks for pointing that out. shfmt should now be happy.

[chessmango]

Hooray for latest working again. Thanks very much for the fix!