Fix logging bug in parseSteamIdFromLoginRedirect

[Ivan-Shaml]

I have noticed I did a small mistake, i am logging a potentailly malicous request. Most like the Object#toString method will be called so only the memory adress will be logged, but still. Also the log message is misleading nevertheless. Thats why we shouldn't copy-paste :D

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (45845f4) 79.00% compared to head (ce53eb6) 79.01%.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop     #824   +/-   ##
==========================================
  Coverage      79.00%   79.01%           
  Complexity      1271     1271           
==========================================
  Files            243      243           
  Lines           3816     3817    +1     
  Branches         242      242           
==========================================
+ Hits            3015     3016    +1     
  Misses           695      695           
  Partials         106      106           

Files	Coverage Δ
...main/java/com/faforever/api/user/SteamService.java	36.00% <100.00%> (+1.30%)	⬆️

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