build(deps): bump github.com/aws/aws-sdk-go from 1.21.6 to 1.23.0 (#190)

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.21.6 to 1.23.0.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-go@v1.21.6...v1.23.0)

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

go.mod

@@ -4,7 +4,7 @@ require (
 	contrib.go.opencensus.io/exporter/jaeger v0.1.0
 	contrib.go.opencensus.io/exporter/prometheus v0.1.0
 	github.com/BurntSushi/toml v0.3.1
-	github.com/aws/aws-sdk-go v1.21.6
+	github.com/aws/aws-sdk-go v1.23.0
 	github.com/cheggaaa/pb v1.0.28
 	github.com/coreos/go-oidc v2.0.0+incompatible
 	github.com/cs3org/go-cs3apis v0.0.0-20190809124338-bd2fb913922c

go.sum

@@ -18,6 +18,8 @@ github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a h1:idn718Q4
 github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/aws/aws-sdk-go v1.21.6 h1:3GuIm55Uls52aQIDGBnSEZbk073jpasfQyeM5eZU61Q=
 github.com/aws/aws-sdk-go v1.21.6/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
+github.com/aws/aws-sdk-go v1.23.0 h1:ilfJN/vJtFo1XDFxB2YMBYGeOvGZl6Qow17oyD4+Z9A=
+github.com/aws/aws-sdk-go v1.23.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/cheggaaa/pb v1.0.28 h1:kWGpdAcSp3MxMU9CCHOwz/8V0kCHN4+9yQm2MzWuI98=