Added customer response base manager query filter to excludes soft deleted wins for auto resend

[dredmonds]

Description of change

This quick fix to excludes soft deleted Export wins from customer response when sending an email notification.

Checklist

• Has this branch been rebased on top of the current main branch?

  Explanation

  The branch should not be stale or have conflicts at the time reviews are requested.

• Is the CircleCI build passing?

General points

Other things to check

• Make sure fixtures/test_data.yaml is maintained when updating models
• Consider the admin site when making changes to models
• Use select-/prefetch-related field lists in views and search apps, and update them when fields are added
• Make sure the README is updated e.g. when adding new environment variables

See docs/CONTRIBUTING.md for more guidelines.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.43%. Comparing base (48be494) to head (078fe93).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5397      +/-   ##
==========================================
+ Coverage   96.38%   96.43%   +0.04%     
==========================================
  Files         931      931              
  Lines       22075    22075              
  Branches     1971     1971              
==========================================
+ Hits        21277    21287      +10     
+ Misses        653      645       -8     
+ Partials      145      143       -2     

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