Bump github.com/aws/aws-sdk-go from 1.30.27 to 1.31.8

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.30.27 to 1.31.8.
- [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@v1.30.27...v1.31.8)

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

go.mod

@@ -5,7 +5,7 @@ go 1.14
 require (
 	github.com/99designs/aws-vault v1.0.1-0.20191030013236-08380e6561cc
 	github.com/99designs/keyring v1.1.5
-	github.com/aws/aws-sdk-go v1.30.27
+	github.com/aws/aws-sdk-go v1.31.8
 	github.com/go-playground/universal-translator v0.17.0 // indirect
 	github.com/jessevdk/go-flags v1.4.0
 	github.com/keybase/go-keychain v0.0.0-20191114153608-ccd67945d59e // indirect

go.sum

@@ -11,6 +11,8 @@ github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk5
 github.com/aws/aws-sdk-go v1.25.17/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.30.27 h1:9gPjZWVDSoQrBO2AvqrWObS6KAZByfEJxQoCYo4ZfK0=
 github.com/aws/aws-sdk-go v1.30.27/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
+github.com/aws/aws-sdk-go v1.31.8 h1:qbA8nsLYcqtGjMGDogqykuO0LyUONkP9YlsKu1SVV5M=
+github.com/aws/aws-sdk-go v1.31.8/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
 github.com/danieljoos/wincred v1.0.2 h1:zf4bhty2iLuwgjgpraD2E9UbvO+fe54XXGJbOwe23fU=
 github.com/danieljoos/wincred v1.0.2/go.mod h1:SnuYRW9lp1oJrZX/dXJqr0cPK5gYXqx3EJbmjhLdK9U=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=