fix(graphql): add hasUncoveredLines filter to ImpactedFilesFilters

[sentry]

This PR resolves the GraphQLError: Field 'hasUncoveredLines' is not defined by type 'ImpactedFilesFilters'. issue (API-ECC).

The root cause was that an external client was querying the GraphQL API with a hasUncoveredLines filter on impactedFiles, but this field was not defined in the ImpactedFilesFilters input type in the GraphQL schema.

Changes made:

1. Added hasUncoveredLines: Boolean to the ImpactedFilesFilters input type in apps/codecov-api/graphql_api/types/inputs/impacted_files_filters.graphql.
2. Implemented the filtering logic in FetchImpactedFiles.execute() in apps/codecov-api/compare/commands/compare/interactors/fetch_impacted_files.py. When hasUncoveredLines is true, the impacted files are filtered to only include those with misses_count > 0.

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Fixes API-ECC

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 91.89%. Comparing base (7b60783) to head (dd9aefc).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...mmands/compare/interactors/fetch_impacted_files.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1217      +/-   ##
==========================================
- Coverage   91.89%   91.89%   -0.01%     
==========================================
  Files        1325     1325              
  Lines       50862    50865       +3     
  Branches     1626     1626              
==========================================
+ Hits        46741    46743       +2     
- Misses       3815     3816       +1     
  Partials      306      306              

Flag	Coverage Δ
apiunit	94.94% <66.66%> (-0.01%)	⬇️

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[codecov-notifications]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...mmands/compare/interactors/fetch_impacted_files.py	66.66%	1 Missing ⚠️

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