fix(mlflow): for proxy use default 'mlflow-artifacts:/' as location

Signed-off-by: Steffen Tautenhahn <stevie-@users.noreply.github.com>

fix(mlflow): do not recreate s3 inline policy

Signed-off-by: Steffen Tautenhahn <stevie-@users.noreply.github.com>

fix(mlflow): requires string

Signed-off-by: Steffen Tautenhahn <stevie-@users.noreply.github.com>

feat: adjustable mflow command options

Signed-off-by: Steffen Tautenhahn <stevie-@users.noreply.github.com>

[DEVEX-508] Improve TF 1.3.x compatibility

fix: support version upgrades

`engine_version`  changed to "5.7.mysql_aurora.2.08.3" from "5.7.mysql_aurora.2.07.1" via maintenance. So we want to ignore maintenance upgrades and do not try to downgrade.

Merge pull request #1 from datadrivers/feature/switch-image-profile

fix(fargate): be able to overwrite image

add gunicorn option variable (#7)

* add timeout variable for gunicorn worker

* enable users to add any gunicorn option

Merge pull request #3 from Glovo/parametrize-auto-pause-aurora

parametrize auto_pause for aurora serverles db

Fix the directory the terratest CI pipeline points to