[pipeline up] handle AWS_PROFILE correctly in pipeline up

[bonifaido]

Describe the bug

When using banzai pipeline up with EC2 if AWS_PROFILE is set the process fails with the following error:

INFO[0000] docker run --rm --net=host --user=502 user-docker-image:latest sh -c tar czh /export | base64
failed to get AWS credentials: NoCredentialProviders: no valid providers in chain. Deprecated.
	For verbose messaging see aws.Config.CredentialsChainVerboseErrors

Steps to reproduce the issue:

export AWS_PROFILE=some-profile
banzai pipeline up --verbose

Expected behavior

The AWS profile should be handled correctly.

Screenshots

Additional context