Fix PR comment inconsistency with test results

[NexionisJake]

• Fix variable shadowing: Rename loop variable 'test' to 'test_item' in get_info_for_pr_comment
• Add uniqueness tracking: Use sets to prevent duplicate RegressionTest entries in result lists
• Add database refresh: Call g.db.refresh(test) before processing to ensure fresh data

Fixes issue where tests in multiple categories were listed multiple times.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

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