Improve Docker container building in examples

[mattrasmus]

A recent version clash has emerged in building and running the docker images in the examples (e.g. 05_aws_batch).

pkg_resources.ContextualVersionConflict: (botocore 1.22.11 (/usr/local/lib/python3.8/dist-packages), Requirement.parse('botocore<1.20.107,>=1.20.106'), {'aiobotocore'})

A quick work around is to use the public package instead of the local editable version in the requirements.txt.

  awscli
- -e redun/
+ redun

A better fix is to improve dependency version ranges to avoid this clash.