Manual Patch of smithy_rs revision (#935)

This manual intervention moves the smithy_rs_revision to one commit past
the addition of the `httpPayload` trait. This will allow the SDK sync
task to succeed.

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## Motivation and Context
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versions.toml

@@ -1,4 +1,4 @@
-smithy_rs_revision = '1297c8c7d3d382ac8c65dad9a2502c56b3311150'
+smithy_rs_revision = '96aa1fcc388a5a9d75ce996e1562955602b46b57'
 aws_doc_sdk_examples_revision = 'dc64af92d9c1780e628ab8b9f665e0490dfad6c8'
 
 [manual_interventions]