Race condition in the example

### Type of issue

Race Condition

### Description

in this part of the code:
```
Interlocked.Add(ref padding, 100);

Console.WriteLine("Task {0} enters the semaphore.", Task.CurrentId);

// The task just sleeps for 1+ seconds.
Thread.Sleep(1000 + padding);
```

The return value of `Interlocked.Add` should have been used in `Thread.Sleep(1000 + padding)` instead of direct usage of `padding`.

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.threading.semaphoreslim?view=net-10.0

### Content source URL

https://github.com/dotnet/dotnet-api-docs-temp/blob/live/xml/System.Threading/SemaphoreSlim.xml

### Document Version Independent Id

00dfa695-b15e-171a-bb3f-6406d5251394

### Platform Id

3555abfc-a4c2-7751-ffba-f0547432065b

### Article author

@dotnet-bot