Workflow to pull new translations fails if multiple manually provided languages

**Short description**: When the workflow 'Work on main branch to pull new & updated translations from tf branch' is run manually, providing more than one language in the variable, the workflow will fail.

**URL**: n/a

**More info**: https://github.com/AntennaPod/antennapod.github.io/runs/6246614776?check_suite_focus=true#step:7:1