fix(spotify): Album artists no longer missing

[Fratt]

Checklist before requesting a review

• [X I have read the contributing guidelines.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Describe your changes

For the Spotify source, the Album Artists array was always empty because of an issue with the logic.

Issue number and link, if applicable

#238

[FoxxMD]

Thanks for finding and fixing this bug! You can use it now on the edge docker image tag foxxmd/multi-scrobbler:edge