Ds 5114

[arivankar-px]

What this PR does / why we need it: In this PR we have updated the packages used from aws sdk version 1 to aws sdk version 2. This has been made to maintain consistency in using the same aws sdk version across libopenstorage/secrets and portworx/pds-api repositories.

Which issue(s) this PR fixes (optional) Closes #DS-5114

Special notes for your reviewer:

• The "github.com/aws/aws-sdk-go/aws/awserr" has been replaced with "github.com/aws/smithy-go" for handling the aws errors. As per this documentation
• The error check has been replaced by static texts (https://github.com/arivankar-px/secrets/pull/1/files#diff-d7c16eb48b74572b31bc640e5c3d1ba6c49f8147421ef0c36a4b4ff8e106d528R197) (Line 197), as the new aws sdk secretmanager plugin doesn't have direct text checks.
• Removed the session variable from the struct object (https://github.com/arivankar-px/secrets/pull/1/files#diff-2fbba6c2a61cbd878c0a269d4d534d6015f818d9257e3d9cd90dc676714afb9b) (Line 99), as aws sdk version 2 didn't support sessions.

[arivankar-px]

This PR has been closed because the test cases were failed due to fork branch commits.