refactor(conformance): drop redundant tuple() constructors (S7496)

[Brad-Edwards]

Why

The dev → main promotion (PR #740) now fails SonarCloud on a single new
violation — python:S7496 "Remove the redundant tuple constructor call" at
aces_conformance/conformance.py. SonarCloud activated this rule since the earlier
scans, and it flags tuple((*a, *b)) where the inner starred expression is already
a tuple. (Not from the modularity split in #743 — this line came in with #741.)

What

Unwrap both occurrences in conformance.py:

capability_gaps = tuple((*surface_gaps, *claim_gaps))  ->  (*surface_gaps, *claim_gaps)
cases          = tuple((*fixture_report.cases, *target_cases))  ->  (*fixture_report.cases, *target_cases)

Semantically identical ((*a, *b) is already a tuple); the tuple(...) wrapper is
pure redundancy.

Verification

• ruff check / format clean; conformance test suite green (83 passed).
• Clears the last SonarCloud new_violations on PR Dev #740 (was 1).

Requirement: MOD-001 (code-quality cleanup).

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud