fix: only sign out accounts with current account id for broker auth

[HuihuiWu-Microsoft]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.95%. Comparing base (ff3f045) to head (704bc8d).
⚠️ Report is 2 commits behind head on release/6.8.

Additional details and impacted files

@@             Coverage Diff              @@
##           release/6.8   #15798   +/-   ##
============================================
  Coverage        92.95%   92.95%           
============================================
  Files              623      623           
  Lines            38445    38445           
  Branches          7090     7015   -75     
============================================
  Hits             35737    35737           
  Misses            1977     1977           
  Partials           731      731           

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