Bump github.com/aws/aws-sdk-go from 1.38.30 to 1.38.44

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.38.30 to 1.38.44.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.38.30...v1.38.44)

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

go.mod

@@ -2,7 +2,7 @@ module github.com/zalando-incubator/kube-metrics-adapter
 
 require (
 	github.com/NYTimes/gziphandler v1.0.1 // indirect
-	github.com/aws/aws-sdk-go v1.38.30
+	github.com/aws/aws-sdk-go v1.38.44
 	github.com/go-openapi/spec v0.20.3
 	github.com/influxdata/influxdb-client-go v0.2.0
 	github.com/influxdata/line-protocol v0.0.0-20201012155213-5f565037cbc9 // indirect