Fix - XmppCredentials writes passwords to logs

[oanaianc]

No description provided.

[codecov]

Codecov Report

Merging #428 (1053006) into master (12937bf) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #428      +/-   ##
============================================
+ Coverage     47.40%   47.42%   +0.02%     
  Complexity      173      173              
============================================
  Files            71       71              
  Lines          1886     1887       +1     
  Branches        186      186              
============================================
+ Hits            894      895       +1     
  Misses          927      927              
  Partials         65       65              

Impacted Files	Coverage Δ
.../main/kotlin/org/jitsi/jibri/config/JibriConfig.kt	40.27% <100.00%> (+0.84%)	⬆️

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