chore(deps): update module aws/aws-sdk-go to v1.28.8

Author: renovate-bot

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/Microsoft/go-winio v0.4.12 // indirect
 	github.com/ajg/form v1.5.1 // indirect
 	github.com/aws/aws-lambda-go v1.11.1
-	github.com/aws/aws-sdk-go v1.28.5
+	github.com/aws/aws-sdk-go v1.28.8
 	github.com/cenkalti/backoff v2.2.1+incompatible
 	github.com/cenkalti/backoff/v4 v4.0.0
 	github.com/certifi/gocertifi v0.0.0-20190506164543-d2eda7129713 // indirect

go.sum

@@ -24,11 +24,14 @@ github.com/aws/aws-sdk-go v1.20.15 h1:y9ts8MJhB7ReUidS6Rq+0KxdFeL01J+pmOlGq6Yqpi
 github.com/aws/aws-sdk-go v1.20.15/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/aws/aws-sdk-go v1.28.8 h1:kPGnElMdW0GDc54Giy1lcE/3gAr2Gzl6cMjYKoBNFhw=
+github.com/aws/aws-sdk-go v1.28.8/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/bombsimon/wsl v1.2.1/go.mod h1:43lEF/i0kpXbLCeDXL9LMT8c92HyBywXb0AsgMHYngM=
 github.com/cenkalti/backoff v2.2.0+incompatible h1:8qVbEY6GLhoLlLi1Ac2ZkVhedNwlhQXc39qivKp9+GI=
 github.com/cenkalti/backoff v2.2.0+incompatible/go.mod h1:b6Nc7NRH5C4aCISLry0tLnTjcuTEvoiqcWDdsU0sOGM=
+github.com/cenkalti/backoff v2.2.1+incompatible h1:tNowT99t7UNflLxfYYSlKYsBpXdEet03Pg2g16Swow4=
 github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
 github.com/cenkalti/backoff/v4 v4.0.0/go.mod h1:eEew/i+1Q6OrCDZh3WiXYv3+nJwBASZ8Bog/87DQnVg=
 github.com/certifi/gocertifi v0.0.0-20190506164543-d2eda7129713 h1:UNOqI3EKhvbqV8f1Vm3NIwkrhq388sGCeAH2Op7w0rc=
@@ -231,6 +234,7 @@ github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/levigross/grequests v0.0.0-20190130132859-37c80f76a0da h1:ixpx9UaTDElZrjbd9GeOVG4Deut0FFumoeel7PvVNm4=
 github.com/levigross/grequests v0.0.0-20190130132859-37c80f76a0da/go.mod h1:uCZIhROSrVmuF/BPYFPwDeiiQ6juSLp0kikFoEcNcEs=
+github.com/levigross/grequests v0.0.0-20190908174114-253788527a1a h1:DGFy/362j92vQRE3ThU1yqg9TuJS8YJOSbQuB7BP9cA=
 github.com/levigross/grequests v0.0.0-20190908174114-253788527a1a/go.mod h1:jVntzcUU+2BtVohZBQmSHWUmh8B55LCNfPhcNCIvvIg=
 github.com/lib/pq v1.1.1 h1:sJZmqHoEaY7f+NPP8pgLB/WxulyR3fewgCM2qaSlBb4=
 github.com/lib/pq v1.1.1/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
@@ -292,6 +296,7 @@ github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=