chore: update test script to filter out generated files

scripts/test.ps1

@@ -21,7 +21,7 @@ try {
       Write-Host "Tests passed. Generating code coverage HTML report..." -ForegroundColor Magenta
       Write-Host ""
 
-      reportgenerator -reports:"**/*.cobertura.xml" -targetdir:"CoverageReport"
+      reportgenerator -reports:"**/*.cobertura.xml" -targetdir:"CoverageReport" -filefilters:"-*.g.cs"
 
       Write-Host ""
       Write-Host "SUCCESS: All tests passed and coverage report generated." -ForegroundColor Green