Bump github.com/aws/aws-sdk-go from 1.28.0 to 1.28.5

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.28.0 to 1.28.5.
- [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@v1.28.0...v1.28.5)

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

go.mod

@@ -3,7 +3,7 @@ module github.com/coveooss/credentials-sync
 go 1.12
 
 require (
-	github.com/aws/aws-sdk-go v1.28.0
+	github.com/aws/aws-sdk-go v1.28.5
 	github.com/bndr/gojenkins v0.0.0-00010101000000-000000000000
 	github.com/golang/mock v1.3.1
 	github.com/hashicorp/go-multierror v1.0.0

go.sum

@@ -47,6 +47,8 @@ github.com/aws/aws-sdk-go v1.27.0 h1:0xphMHGMLBrPMfxR2AmVjZKcMEESEgWF8Kru94BNByk
 github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.28.0 h1:NkmnHFVEMTRYTleRLm5xUaL1mHKKkYQl4rCd+jzD58c=
 github.com/aws/aws-sdk-go v1.28.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
+github.com/aws/aws-sdk-go v1.28.5 h1:yYeWPM8w5FoIj3Lo0BDZxRyDpTveKTq/qvnIEPBnev8=
+github.com/aws/aws-sdk-go v1.28.5/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=