Helper method to remove all annotations of type

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Is your feature request related to a problem? Please describe the problem.

I somewhat commonly find myself trying to remove all annotations of a type from a resource. This requires some boiler plate code, as well as a possible footgun if you forget to materialise the annotations to remove before you strt iterating over the collection to remove them.

I can also see this pattern semi commonly in the aspire code base.

```cs
var roleAssignmentAnnotations = azureResource.Annotations.OfType().ToArray();
foreach (var annotation in roleAssignmentAnnotations)
{
azureResource.Annotations.Remove(annotation);
}
```
```cs
resource.Resource.Annotations.OfType()
.Where(w => w.Resource == existingResource.Resource)
.ToList()
.ForEach(w => resource.Resource.Annotations.Remove(w));
```
```cs
if (builder.Resource.Annotations.OfType().SingleOrDefault() is { } containerAnnotation)
{
builder.Resource.Annotations.Remove(containerAnnotation);
}
```
### Describe the solution you'd like

I'd like to see an extension method that encapsulates this pattern

```cs
public static bool RemoveAnnotationsOfType(this IResource resource) where T : IResourceAnnotation
{
var toRemove = resource.Annotations.OfType().ToArray();
foreach (var annotation in toRemove)
{
resource.Annotations.Remove(annotation);
}
return toRemove.Length > 0;
}
```

### Additional context

_No response_