[Bug Report]DeviceClient.GetFileUploadSaSUriAsync() returns invalid SAS when hub is using System-identity.

# Context

- **OS, version, SKU and CPU architecture used:** (Windows 10 Desktop x64)
- **Application's .NET Target Framework :** .net8.0
- **Device:** Laptop
- **SDK version used:**
Microsoft.Azure.Devices.Client 1.42.3

## Description of the issue
Followeing these [instructions](https://learn.microsoft.com/en-us/azure/iot-hub/file-upload-dotnet)
Fie Upload works.
Change the authentication type for iot hub [here](https://learn.microsoft.com/en-us/azure/iot-hub/file-upload-dotnet#associate-an-azure-storage-account-to-iot-hub). from Key-based to System-assigned.
Change back, file upload works again.

From python it works by treating the token as an AccessToken and adding an auth header, but that is not an option in C#.

Original discussion in [Q&A](https://learn.microsoft.com/en-us/answers/questions/1695252/sas-token-not-working-for-fileupload-iothub).

## Code sample exhibiting the issue
[Please remove any connection string information!](https://github.com/Azure/azure-iot-sdk-csharp/blob/main/iothub/device/samples/getting%20started/FileUploadSample/FileUploadSample.cs)
Updated dotnet version and packages, did not test as written.

## Console log of the issue
Follow the instructions [here](https://github.com/Azure/azure-iot-sdk-csharp/tree/main/tools/CaptureLogs) to capture SDK logs.
Don't forget to remove any connection string information!

Exception thrown: 'Azure.RequestFailedException' in System.Private.CoreLib.dll
Azure.RequestFailedException: Server failed to authenticate the request. Please refer to the information in the www-authenticate header.
RequestId:2081d445-901e-0073-19b2-bda93b000000
Time:2024-06-13T16:53:36.5127373Z
Status: 401 (Server failed to authenticate the request. Please refer to the information in the www-authenticate header.)
ErrorCode: NoAuthenticationInformation

Content:
NoAuthenticationInformationServer failed to authenticate the request. Please refer to the information in the www-authenticate header.
RequestId:2081d445-901e-0073-19b2-bda93b000000
Time:2024-06-13T16:53:36.5127373Z

Headers:
Server: Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0
x-ms-request-id: 2081d445-901e-0073-19b2-bda93b000000
x-ms-client-request-id: e3128d2e-e46f-4494-aa57-6c5876f0ae64
x-ms-version: 2023-11-03
x-ms-error-code: NoAuthenticationInformation
WWW-Authenticate: Bearer authorization_uri=https://login.microsoftonline.com/37051258-66ca-457a-a41d-d94c41705e37/oauth2/authorize resource_id=https://storage.azure.com
Date: Thu, 13 Jun 2024 16:53:36 GMT
Content-Length: 302
Content-Type: application/xml

at Azure.Storage.Blobs.BlockBlobRestClient.UploadAsync(Int64 contentLength, Stream body, Nullable`1 timeout, Byte[] transactionalContentMD5, String blobContentType, String blobContentEncoding, String blobContentLanguage, Byte[] blobContentMD5, String blobCacheControl, IDictionary`2 metadata, String leaseId, String blobContentDisposition, String encryptionKey, String encryptionKeySha256, Nullable`1 encryptionAlgorithm, String encryptionScope, Nullable`1 tier, Nullable`1 ifModifiedSince, Nullable`1 ifUnmodifiedSince, String ifMatch, String ifNoneMatch, String ifTags, String blobTagsString, Nullable`1 immutabilityPolicyExpiry, Nullable`1 immutabilityPolicyMode, Nullable`1 legalHold, Byte[] transactionalContentCrc64, CancellationToken cancellationToken)
at Azure.Storage.Blobs.Specialized.BlockBlobClient.UploadInternal(Stream content, BlobHttpHeaders blobHttpHeaders, IDictionary`2 metadata, IDictionary`2 tags, BlobRequestConditions conditions, Nullable`1 accessTier, BlobImmutabilityPolicy immutabilityPolicy, Nullable`1 legalHold, IProgress`1 progressHandler, UploadTransferValidationOptions transferValidationOverride, String operationName, Boolean async, CancellationToken cancellationToken)
at Azure.Storage.Blobs.Specialized.BlockBlobClient.<>c__DisplayClass65_0.<b__0>d.MoveNext()
--- End of stack trace from previous location ---
at Azure.Storage.PartitionedUploader`2.UploadInternal(Stream content, Nullable`1 expectedContentLength, TServiceSpecificData args, IProgress`1 progressHandler, Boolean async, CancellationToken cancellationToken)
at Azure.Storage.Blobs.Specialized.BlockBlobClient.UploadAsync(Stream content, BlobUploadOptions options, CancellationToken cancellationToken)

Start with FileUploadSample.cs and the DeviceClient.GetFileUploadSaSUriAsync() flow described in the issue. Reproduce file upload with the IoT Hub storage account set to System-assigned identity, compare it with key-based authentication, and use the reported 401 response to trace the generated SAS. Done means uploads authenticate successfully with System-assigned identity.

Written by the indexing model from the issue text.