chore(deps): replace aws-sdk-go with aws-sdk-go-v2

aws-sdk-go-v2 supports more formats of AWS configuration. In particular,
it supports the sso-session configuration
[section](https://docs.aws.amazon.com/cli/latest/userguide/sso-configure-profile-token.html#sso-configure-profile-token-manual).

Signed-off-by: Neil Vachharajani <[email protected]>

Author: Neil Vachharajani

docs/backends.md

@@ -237,8 +237,10 @@ stringData:
 ### AWS Secrets Manager
 
 ##### AWS Authentication
-Refer to the [AWS go SDK README](https://github.com/aws/aws-sdk-go#configuring-credentials) for supplying AWS credentials.
-Supported credentials and the order in which they are loaded are described [here](https://github.com/aws/aws-sdk-go/blob/v1.38.62/aws/session/doc.go#L22).
+Refer to the [AWS SDK for Go V2
+documentation](https://aws.github.io/aws-sdk-go-v2/docs/configuring-sdk/#specifying-credentials) for
+supplying AWS credentials. Supported credentials and the order in which they are loaded are
+described [here](https://aws.github.io/aws-sdk-go-v2/docs/configuring-sdk/#specifying-credentials).
 
 These are the parameters for AWS:
 ```

go.mod

@@ -20,7 +20,7 @@ require (
 	github.com/IBM/go-sdk-core/v5 v5.10.1
 	github.com/IBM/secrets-manager-go-sdk v1.0.44
 	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d // indirect
-	github.com/aws/aws-sdk-go v1.44.24
+	github.com/aws/aws-sdk-go v1.44.24 // indirect
 	github.com/cenkalti/backoff/v3 v3.2.2 // indirect
 	github.com/go-logr/logr v1.2.3 // indirect
 	github.com/go-openapi/errors v0.20.2 // indirect
@@ -53,6 +53,12 @@ require (
 	sigs.k8s.io/yaml v1.3.0
 )
 
+require (
+	github.com/aws/aws-sdk-go-v2 v1.17.5
+	github.com/aws/aws-sdk-go-v2/config v1.18.15
+	github.com/aws/aws-sdk-go-v2/service/secretsmanager v1.18.6
+)
+
 require (
 	cloud.google.com/go v0.102.0 // indirect
 	cloud.google.com/go/compute v1.6.1 // indirect
@@ -75,6 +81,16 @@ require (
 	github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190620160927-9418d7b0cd0f // indirect
 	github.com/armon/go-metrics v0.4.0 // indirect
 	github.com/armon/go-radix v1.0.0 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.13.15 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.12.23 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.29 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.23 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.30 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.23 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.12.4 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.14.4 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.18.5 // indirect
+	github.com/aws/smithy-go v1.13.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bgentry/speakeasy v0.1.0 // indirect
 	github.com/blang/semver v3.5.1+incompatible // indirect