Add new fields to sentry config

[cgsunkel]

Description of change

We've been asked to add two more fields to our Sentry setup

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]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.29%. Comparing base (0c208ce) to head (ade0670).

Additional details and impacted files

@@                Coverage Diff                 @@
##           govuk-paas-deploy    #5537   +/-   ##
==================================================
  Coverage              96.29%   96.29%           
==================================================
  Files                    959      959           
  Lines                  22659    22659           
  Branches                2035     2035           
==================================================
  Hits                   21819    21819           
  Misses                   687      687           
  Partials                 153      153           

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