Preferences: Fix STUN Server label

2 jobs for master in 5 minutes and 41 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #21995
code-quality

00:03:29

 
  Build
passed #21996
linux

00:02:11

 
Name Stage Failure
failed
code-quality Test
gajim/gtk/account_wizard.py:502: error: Dict entry 0 has incompatible type "str": "Tuple[Any, None, Tuple[Type[str]]]"; expected "str": "Tuple[Any, None, Tuple[]]"
Found 1 error in 1 file (checked 216 source files)
Uploading artifacts for failed job
Uploading artifacts...
Runtime platform
arch=amd64 os=linux pid=21448 revision=943fc252 version=13.7.0
WARNING: coverage.xml: no matching files
ERROR: No files to upload
Cleaning up file based variables
ERROR: Job failed: exit status 1