Fixed User Delegation SAS string to sign for STG 98 (Azure#49509)

Author: seanmcc-msft

sdk/storage/Azure.Storage.Blobs/src/Sas/BlobSasBuilder.cs

@@ -509,6 +509,8 @@ private string ToStringToSign(UserDelegationKey userDelegationKey, string accoun
                     PreauthorizedAgentObjectId,
                     null, // AgentObjectId - enabled only in HNS accounts
                     CorrelationId,
+                    null, // SignedKeyDelegatedUserTenantId, will be added in a future release.
+                    null, // SignedDelegatedUserObjectId, will be added in future release.
                     IPRange.ToString(),
                     SasExtensions.ToProtocolString(Protocol),
                     Version,

sdk/storage/Azure.Storage.Blobs/tests/BlobSasBuilderTests.cs

@@ -663,6 +663,8 @@ private string BuildIdentitySignature(bool includeBlob, bool includeSnapshot, st
                 null,
                 null,
                 null,
+                null, // SignedKeyDelegatedUserTenantId, will be added in a future release.
+                null, // SignedDelegatedUserObjectId, will be added in future release.
                 constants.Sas.IPRange.ToString(),
                 SasExtensions.ToProtocolString(constants.Sas.Protocol),
                 SasQueryParametersInternals.DefaultSasVersionInternal,

sdk/storage/Azure.Storage.Files.DataLake/src/Sas/DataLakeSasBuilder.cs

@@ -529,6 +529,8 @@ private string ToStringToSign(UserDelegationKey userDelegationKey, string accoun
                 PreauthorizedAgentObjectId,
                 AgentObjectId,
                 CorrelationId,
+                null, // SignedKeyDelegatedUserTenantId, will be added in a future release.
+                null, // SignedDelegatedUserObjectId, will be added in future release.
                 IPRange.ToString(),
                 SasExtensions.ToProtocolString(Protocol),
                 Version,