build(deps): bump github.com/aws/aws-sdk-go from 1.29.3 to 1.29.8 (#3692)

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.29.3 to 1.29.8.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.29.3...v1.29.8)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/DataDog/datadog-go v3.3.1+incompatible // indirect
 	github.com/Shopify/sarama v1.21.0 // indirect
 	github.com/apache/thrift v0.13.0 // indirect
-	github.com/aws/aws-sdk-go v1.29.3
+	github.com/aws/aws-sdk-go v1.29.8
 	github.com/caddyserver/caddy v1.0.4
 	github.com/cenkalti/backoff/v4 v4.0.0
 	github.com/coredns/federation v0.0.0-20190818181423-e032b096babe

go.sum

@@ -70,6 +70,8 @@ github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb
 github.com/aws/aws-sdk-go v1.23.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.29.3 h1:yvEwt1IvgiWpWWayQBQHCK0knTmHKyI7FCrliOV5Pd8=
 github.com/aws/aws-sdk-go v1.29.3/go.mod h1:1KvfttTE3SPKMpo8g2c6jL3ZKfXtFvKscTgahTma5Xg=
+github.com/aws/aws-sdk-go v1.29.8 h1:Kma1ikL7MHs/XH5Q4Aqj53AAhgttW6UFykc8Qj16HGo=
+github.com/aws/aws-sdk-go v1.29.8/go.mod h1:1KvfttTE3SPKMpo8g2c6jL3ZKfXtFvKscTgahTma5Xg=
 github.com/baiyubin/aliyun-sts-go-sdk v0.0.0-20180326062324-cfa1a18b161f/go.mod h1:AuiFmCCPBSrqvVMvuqFuk0qogytodnVFVSN5CeJB8Gc=
 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=