Pull translations for all languages

cataclysm-dda.credits-master [ru] - Pulling file
cataclysm-dda.credits-master [ru] - File was not found locally, skipping

tx pull will not pull files if they do not exist locally.

> In case that there aren't any translation files, like in the
  structure above, then you must either use the -l/--language or the
  -a/--all flag.

https://developers.transifex.com/docs/using-the-client

Author: ehughsbaird

.github/workflows/build-translations.yml

@@ -33,7 +33,7 @@ jobs:
         if: github.repository == 'CleverRaven/Cataclysm-DDA'
         env:
           TX_TOKEN: ${{ secrets.TX_TOKEN }}
-        run: tx pull --force
+        run: tx pull -a --force
 
       - name: Discard invalid translations
         run: ./lang/discard_invalid_po.sh