Bump github.com/aws/smithy-go from 1.20.4 to 1.21.0

Bumps [github.com/aws/smithy-go](https://github.com/aws/smithy-go) from 1.20.4 to 1.21.0.
- [Release notes](https://github.com/aws/smithy-go/releases)
- [Changelog](https://github.com/aws/smithy-go/blob/main/CHANGELOG.md)
- [Commits](aws/smithy-go@v1.20.4...v1.21.0)

---
updated-dependencies:
- dependency-name: github.com/aws/smithy-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/shield v1.27.6
 	github.com/aws/aws-sdk-go-v2/service/storagegateway v1.32.0
 	github.com/aws/aws-sdk-go-v2/service/sts v1.30.7
-	github.com/aws/smithy-go v1.20.4
+	github.com/aws/smithy-go v1.21.0
 	github.com/go-kit/log v0.2.1
 	github.com/grafana/regexp v0.0.0-20221123153739-15dc172cd2db
 	github.com/prometheus/client_golang v1.20.4

go.sum

@@ -46,8 +46,8 @@ github.com/aws/aws-sdk-go-v2/service/storagegateway v1.32.0 h1:pFeZEJ7VJj/dAVnDA
 github.com/aws/aws-sdk-go-v2/service/storagegateway v1.32.0/go.mod h1:DMpqLTXDFFABHttF2PZ6uZwB1JFgQh1Zs9rBvbdXYn8=
 github.com/aws/aws-sdk-go-v2/service/sts v1.30.7 h1:NKTa1eqZYw8tiHSRGpP0VtTdub/8KNk8sDkNPFaOKDE=
 github.com/aws/aws-sdk-go-v2/service/sts v1.30.7/go.mod h1:NXi1dIAGteSaRLqYgarlhP/Ij0cFT+qmCwiJqWh/U5o=
-github.com/aws/smithy-go v1.20.4 h1:2HK1zBdPgRbjFOHlfeQZfpC4r72MOb9bZkiFwggKO+4=
-github.com/aws/smithy-go v1.20.4/go.mod h1:irrKGvNn1InZwb2d7fkIRNucdfwR8R+Ts3wxYa/cJHg=
+github.com/aws/smithy-go v1.21.0 h1:H7L8dtDRk0P1Qm6y0ji7MCYMQObJ5R9CRpyPhRUkLYA=
+github.com/aws/smithy-go v1.21.0/go.mod h1:irrKGvNn1InZwb2d7fkIRNucdfwR8R+Ts3wxYa/cJHg=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=