fix(deps): update module github.com/aws/smithy-go to v1.27.7

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/aws/smithy-go	v1.27.6 → v1.27.7

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Release Notes

aws/smithy-go (github.com/aws/smithy-go)

v1.27.7

Compare Source

General Highlights

• Dependency Update: Updated to the latest SDK module versions

Module Highlights

• github.com/aws/smithy-go: v1.27.7
  • Bug Fix: Don't serialize unset JSON documents as nil in structure members.
  • Bug Fix: Fix a deserialization panic around collection members in recursive shape configs.

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