Feature CLS2-982 add missing EYB lead search fields

[marijnkampf]

Description of change

Add triage_created and is_high_value fields to open search for Investment Project EYB Leads.

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.

[DeanElliott96]

Looks good, if coverage doesn't pick it up do you think this should have a test?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.60%. Comparing base (aaeaea7) to head (d79459c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5839   +/-   ##
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  Coverage   96.60%   96.60%           
=======================================
  Files        1046     1046           
  Lines       24902    24902           
  Branches     1647     1647           
=======================================
  Hits        24057    24057           
  Misses        689      689           
  Partials      156      156           

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[oliverjwroberts]

Looks good to me. A couple of queries, but nothing blocking the PR.