feat(JobScheduler): improve dependency handling logic

Updated `JobScheduler` to enhance dependency tracking by counting valid dependencies upfront and dynamically adjusting counts using `Interlocked` operations. Improved job enqueueing logic to ensure jobs are only enqueued when all dependencies are met.

Replaced `Interlocked.Increment` with `Interlocked.Add` for batch updates to `_totalJobCount`, improving performance. Adjusted `VirtualStack` cleanup to use the correct size variable for memory deallocation.

Simplified `JobDispatchingJob` API by removing `ctx.ThreadIndex` parameter. Updated `TestJobSystem` to pass job handles as dependencies for proper execution order.

Incremented assembly version to 1.5.9 to reflect these changes.

Misaki.HighPerformance.Test/Jobs/JobDispatchingJob.cs

@@ -28,7 +28,7 @@ internal struct JobDispatchingJob : IJobParallelFor
                 data = data[loopIndex]
             };
 
-            var handle = ctx.JobScheduler.ScheduleParallelFor(in innerJob, data[loopIndex].Length, 64, ctx.ThreadIndex);
+            var handle = ctx.JobScheduler.ScheduleParallelFor(in innerJob, data[loopIndex].Length, 64);
             handles.AddNoResize(handle);
         }
     }