Fix code scanning alert no. 7: Clear-text logging of sensitive information

[mstmdev]

Fixes https://github.com/no-src/gofs/security/code-scanning/7

To fix the problem, we should avoid logging the password in clear text. Instead, we can log the attempt to log in without including the password. This way, we maintain the ability to debug login attempts without exposing sensitive information.

• Remove the password from the log message.
• Keep the log message informative by including the username and other non-sensitive information.
• Ensure that the functionality of the code remains unchanged.

Suggested fixes powered by Copilot Autofix. Review carefully before merging.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 31.45%. Comparing base (bdbd0d5) to head (04bf30f).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
server/client/login.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #412   +/-   ##
=======================================
  Coverage   31.45%   31.45%           
=======================================
  Files         134      134           
  Lines        7274     7274           
=======================================
  Hits         2288     2288           
  Misses       4892     4892           
  Partials       94       94           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.