feat: add custom user agent header string in AWS SDK clients

[BenjiTheC]

Description

This PR add custom user agent header string to AWS SDK clients code. The following method is used as follow:

• If there is one and only one AWS SDK client in the inversify.config.ts, directly update the client option
• If there is more than one AWS SDK clients in the inversify.config.ts, use AWS.config.update to update global config

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (existing code being refactored)
• This change includes a documentation update

Submission Checklist

• CI dry-run passing
• Integration tests passing locally
  • N/A
• Change logs generated
  • N/A

Additional Notes: