fix: update logout_view to redirect to dashboard_url

[joseph-sentry]

What does this PR do?

• change logout_view redirect url to hardcoded dashboard url in settings

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cd33523) 95.57% compared to head (8adaab8) 95.57%.
Report is 1 commits behind head on main.

❗ Current head 8adaab8 differs from pull request most recent head 634f89a. Consider uploading reports for the commit 634f89a to get more accurate results

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #309   +/-   ##
=====================================
  Coverage   95.57   95.57           
=====================================
  Files        726     726           
  Lines      16228   16227    -1     
=====================================
- Hits       15509   15508    -1     
  Misses       719     719           

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[codecov-qa]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e55bcdd) 95.95% compared to head (0a06708) 95.95%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #309   +/-   ##
=======================================
  Coverage   95.95%   95.95%           
=======================================
  Files         611      611           
  Lines       15722    15722           
=======================================
  Hits        15086    15086           
  Misses        636      636           

Flag	Coverage Δ
unit	95.95% <100.00%> (ø)
unit-latest-uploader	95.95% <100.00%> (ø)

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[codecov-public-qa]

Codecov Report

Merging #309 (0a06708) into main (e55bcdd) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #309   +/-   ##
=======================================
  Coverage   95.95%   95.95%           
=======================================
  Files         611      611           
  Lines       15722    15722           
=======================================
  Hits        15086    15086           
  Misses        636      636           

Flag	Coverage Δ
unit	95.95% <100.00%> (ø)
unit-latest-uploader	95.95% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
codecov_auth/views/logout.py	100.00% <100.00%> (ø)