fix: handle arbitrary nesting depth in parseRawTestName

The >= 3 slash-part branch hardcoded indices 0, 1, 2 which dropped
parts beyond the third. Swift Testing supports nested suites so names
like Module/OuterSuite/InnerSuite/testMethod are possible. Now uses
slice/at to preserve the full suite path and final test name.

Author: cameroncooke

src/utils/xcodebuild-line-parsers.ts

@@ -62,7 +62,7 @@ export function parseRawTestName(rawName: string): { suiteName?: string; testNam
 
   const slashParts = rawName.split('/').filter(Boolean);
   if (slashParts.length >= 3) {
-    return { suiteName: `${slashParts[0]}/${slashParts[1]}`, testName: slashParts[2] };
+    return { suiteName: slashParts.slice(0, -1).join('/'), testName: slashParts.at(-1)! };
   }
 
   if (slashParts.length === 2) {