Fix throwing exception typ of temporaryUrl

[flkasper]

The temporaryUrl method is defined in the \League\Flysystem\UrlGeneration\TemporaryUrlGenerator interface and may throw an \League\Flysystem\UnableToGenerateTemporaryUrl exception.

This change ensures that only this exceptions are thrown.

• The \InvalidArgumentException was replaced.
• In the \AzureOss\Storage\Blob\BlobClient::generateSasUri method, an \Exception::__construct exception is thrown if an authentication method other than \AzureOss\Storage\Common\Auth\StorageSharedKeyCredential is used, e.g., authentication with \AzureOss\Storage\Common\Auth\AccessToken.
  This exception is then caught and wrapped in the expected one.

[brecht-vermeersch]

Thanks for the changes!