feat(graphql): allow owner query by ownerid

[sentry]

This PR extends the owner GraphQL field to allow querying by ownerid in addition to username.

Previously, the owner field in the GraphQL API only accepted a required username: String! argument. This led to GraphQLError exceptions when clients attempted to query for an owner using an ownerid.

This change modifies the owner field to accept either username: String or ownerid: Int (both optional, but at least one must be provided). A new get_owner_by_id action was introduced, and the resolve_owner resolver was updated to handle both arguments, ensuring that the correct owner lookup is performed based on the provided identifier.

This resolves the issue where clients were unable to query owners by their numerical ID.

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Fixes API-EWB

_{This PR was automatically generated by Sentry. You can adjust this setting at any time.}

[thomasrockhu-codecov]

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Codecov Report

❌ Patch coverage is 56.25000% with 7 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
apps/codecov-api/graphql_api/actions/owner.py	33.33%	4 Missing ⚠️
apps/codecov-api/graphql_api/types/query/query.py	70.00%	3 Missing ⚠️

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[codecov]

Codecov Report

❌ Patch coverage is 56.25000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.62%. Comparing base (a8ec2db) to head (6adc4a9).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
apps/codecov-api/graphql_api/actions/owner.py	33.33%	4 Missing ⚠️
apps/codecov-api/graphql_api/types/query/query.py	70.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2019      +/-   ##
==========================================
- Coverage   91.63%   91.62%   -0.02%     
==========================================
  Files        1336     1336              
  Lines       53230    53242      +12     
  Branches     1647     1647              
==========================================
+ Hits        48778    48783       +5     
- Misses       4131     4138       +7     
  Partials      321      321              

Flag	Coverage Δ
apiunit	93.96% <56.25%> (-0.03%)	⬇️

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