Include CI pipeline (Github Action) for running integration tests towards AWS

[onno-vos-dev]

Description

The CI pipeline of aws_erlang should include the running of integration tests towards real AWS. Considering that there's a limit to how many requests can be made without incurring costs (which will be blocked), we should be careful regarding running this pipeline to avoid a single user being able to spam the CI and exhaust the limits and avoid any future tests from being able to be run for the remainder of that month.

Acceptance Criteria

• Setup a CI pipeline which:
  • Runs on a weekly cron basis
  • Triggers whenever a devel-* branch is pushed. This way PR's from forks/branches that touch stuff that should be tested towards AWS, can be tested by pushing a devel-<some-commit-that-should-be-tested>