azblob: Make it possible to set API version on BlobClient

[stanhu]

Feature Request

This is related to:

• x-ms-version is not changed when using a different storage profile for Azure Stack Hub #18688
• specify api-version in disks_client.go #23686

Currently the BlobClient hard-codes the x-ms-version to 2025-11-05:

azure-sdk-for-go/sdk/storage/azblob/internal/generated/zz_blob_client.go

Line 2898 in 5b7ca8c

req.Raw().Header["x-ms-version"] = []string{"2025-11-05"}

However, Azure Stack Hub needs an older value.

[jhendrixMSFT]

This is essentially a dupe of #25289. Please see that issue as it contains a workaround until support for ClientOptions.APIVersion is added.

[tanyasethi-msft]

Hi @stanhu , please try the following -
req.Raw().Header["x-ms-version"] = []string{c.version}