Bump github.com/aws/aws-sdk-go from 1.38.36 to 1.38.40

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.38.36 to 1.38.40.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/main/CHANGELOG.md)
- [Commits](aws/aws-sdk-go@v1.38.36...v1.38.40)

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

Author: dependabot[bot]

go.mod

@@ -4,7 +4,7 @@ go 1.12
 
 require (
 	github.com/aws/amazon-kinesis-firehose-for-fluent-bit v1.5.1
-	github.com/aws/aws-sdk-go v1.38.36
+	github.com/aws/aws-sdk-go v1.38.40
 	github.com/fluent/fluent-bit-go v0.0.0-20201210173045-3fd1e0486df2
 	github.com/golang/mock v1.4.4
 	github.com/json-iterator/go v1.1.11

go.sum

@@ -1,8 +1,8 @@
 github.com/aws/amazon-kinesis-firehose-for-fluent-bit v1.5.1 h1:6/X+V7X2W2+e2IPCiyhbWhQIMikDkwQ5tPFlcJv2FBk=
 github.com/aws/amazon-kinesis-firehose-for-fluent-bit v1.5.1/go.mod h1:alkjOObhCCp4KtT96XPWFi1PRRLUY0teGD8TWgroo2E=
 github.com/aws/aws-sdk-go v1.36.2/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
-github.com/aws/aws-sdk-go v1.38.36 h1:MiqzQY/IOFTX/jmGse7ThafD0eyOC4TrCLv2KY1v+bI=
-github.com/aws/aws-sdk-go v1.38.36/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
+github.com/aws/aws-sdk-go v1.38.40 h1:VVqBFV24tGgXR11tFXPjmR+0ItbnUepbuQjdmhgu3U0=
+github.com/aws/aws-sdk-go v1.38.40/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=