Image is not deleted even when response from CloudinaryDotNet is successful

## Bug report for Cloudinary .NET SDK
Before proceeding, please update to latest version and test if the issue persists

## Describe the bug in a sentence or two.
…

## Issue Type (Can be multiple)
- [ ] Build - Cannot install or import the SDK
- [ ] Performance - Performance issues
- [X ] Behaviour - Functions are not working as expected (such as generate URL)
- [ ] Documentation - Inconsistency between the docs and behaviour
- [ ] Other (Specify)

## Steps to reproduce
Executing

```
var deleteParams = new DelResParams()
{
PublicIds = new List { "wsv4vxeglcbupvmonsno" }, // Example of publicId
Type = "upload",
ResourceType = ResourceType.Image,
Invalidate = true,
Tag = "REMOVED"
};

var result = _cloudinaryClient.DeleteResources(deleteParams);
// returns OK and Errors = null
```

## Error screenshots or Stack Trace (if applicable)
…

## OS and Version
- [ ] Linux
- [ ] Windows
- [ ] macOS
- [ X ] MultiPlatform

## Versions and Libraries (fill in the version numbers)
- Cloudinary .NET SDK version - 1.25.0
- .NET Core - 8.0.0
- .NET Framework - 0.0.0

## Repository

If possible, please provide a link to a reproducible repository that showcases the problem