fix: key Tia results per dataset row (#1799)

The result cache was keyed `Class::method` on both sides, so every row of a
`->with()` test shared one entry and the last writer won. On replay that single
status was handed to every row.

`TestMethod::id()` already appends `#dataSetName`, and `TestCase` reaches the
same value object through `valueObjectForEvents()`, so both sides can use it.

src/Subscribers/EnsureTiaResultsAreCollected.php

@@ -21,7 +21,7 @@ final readonly class EnsureTiaResultsAreCollected implements PreparationStartedS
         $test = $event->test();
 
         if ($test instanceof TestMethod) {
-            $this->collector->testPrepared($test->className().'::'.$test->methodName(), $test->file());
+            $this->collector->testPrepared($test->id(), $test->file());
         }
     }
 }