Add test for "languageCodesTest.php"
Add test for "languageCodesTest.php"

Arguably not the most awesome test but increases coverage and is an easy gain.

Signed-off-by: Lukas Reschke <65adda4326914576405c9e3a62f4904d96573863@statuscode.ch>

pmattern/server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,Ardinis/server,nextcloud/server,michaelletzgus/nextcloud-server,endsguy/server,whitekiba/server,nextcloud/server,endsguy/server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,jbicha/server,whitekiba/server,pixelipo/server,jbicha/server,jbicha/server,whitekiba/server,nextcloud/server,xx621998xx/server,jbicha/server,Ardinis/server,Ardinis/server,Ardinis/server,xx621998xx/server,michaelletzgus/nextcloud-server,pmattern/server,pixelipo/server,whitekiba/server,xx621998xx/server,michaelletzgus/nextcloud-server,pixelipo/server,endsguy/server,andreas-p/nextcloud-server,pixelipo/server,jbicha/server,nextcloud/server,pmattern/server,xx621998xx/server,whitekiba/server,pmattern/server,xx621998xx/server,endsguy/server,Ardinis/server,pmattern/server,endsguy/server,pixelipo/server,andreas-p/nextcloud-server