vendor: Update AWS SDK (#684)

Hi, this is a simple change - I have a setup with AWS SSO, specifically
`sso_session`
([docs](https://docs.aws.amazon.com/cli/latest/userguide/sso-configure-profile-token.html#:~:text=This%20results%20in%20creating%20the%20sso%2Dsession%20section%20and%20named%20profile%20in%20~/.aws/config%20that%20looks%20like%20the%20following%3A)).

It got implemented in the AWS Go SDK fairly recently
aws/aws-sdk-go#4885 -
[v1.44.298](https://github.com/aws/aws-sdk-go/releases/tag/v1.44.298)
 
Since it's just a patch version upgrade, it was just a simple matter of
bumping the version.

Thanks

go.mod

@@ -3,7 +3,7 @@ module github.com/peak/s5cmd/v2
 go 1.19
 
 require (
-	github.com/aws/aws-sdk-go v1.44.256
+	github.com/aws/aws-sdk-go v1.44.298
 	github.com/cheggaaa/pb/v3 v3.1.4
 	github.com/golang/mock v1.6.0
 	github.com/google/go-cmp v0.5.9

go.sum

@@ -1,7 +1,8 @@
 github.com/VividCortex/ewma v1.2.0 h1:f58SaIzcDXrSy3kWaHNvuJgJ3Nmz59Zji6XoJR/q1ow=
 github.com/VividCortex/ewma v1.2.0/go.mod h1:nz4BbCtbLyFDeC9SUHbtcT5644juEuWfUAUnGx7j5l4=
-github.com/aws/aws-sdk-go v1.44.256 h1:O8VH+bJqgLDguqkH/xQBFz5o/YheeZqgcOYIgsTVWY4=
 github.com/aws/aws-sdk-go v1.44.256/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI=
+github.com/aws/aws-sdk-go v1.44.298 h1:5qTxdubgV7PptZJmp/2qDwD2JL187ePL7VOxsSh1i3g=
+github.com/aws/aws-sdk-go v1.44.298/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI=
 github.com/cheggaaa/pb/v3 v3.1.4 h1:DN8j4TVVdKu3WxVwcRKu0sG00IIU6FewoABZzXbRQeo=
 github.com/cheggaaa/pb/v3 v3.1.4/go.mod h1:6wVjILNBaXMs8c21qRiaUM8BR82erfgau1DQ4iUXmSA=
 github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=