Use Task Role in place of AWS Credentials #101
Description
Is your feature request related to a specific problem?
As part of wanting to reduce reliance on maintaining credentials, we should review how to use a task role instead of specific credentials.
Describe the solution you'd like
Generate the credentials on the fly using https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-iam-roles.html
Describe alternatives you've considered, if any
Continuing to use credentials (we need these anyways for the user to load data in Snowflake)
Additional context
This is being split from #99 as we don't have a good way to test this now
To test, we will first need a staging environment since running in an AWS container environment is required.