Add back importlib-resources

[winfried-ripken]

Description

Fix failing cloud build

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring including code style reformatting
• Other (please describe):

Checklist:

• I have read the contributing guideline doc (external contributors only)
• Lint and unit tests pass locally with my changes
• I have kept the PR small so that it can be easily reviewed
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• All dependency changes have been reflected in the pip requirement files.

[AlpAribal]

With python 3.8, pip-tools adds importlib-resources automatically to the reqs.txt (without adding to reqs.dev.in). With python 3.9, this dependency is not added.

The reason is jsonschema, which has the dependency "importlib_resources>=1.4.0;python_version<'3.9'",. Since importlib-resources is a backport package, I assume the standard library is enough for jsonschema starting with python 3.9.

To prevent such cases, we should all be using the same environment for development. Always using the project container for development would probably be the best approach. The minimum we should do is to use the same python version as the container (which is 3.8, at least for now) in our development environment.

For this particular case, I suggest removing importlib-resources from the reqs.dev.in and freezing using python 3.8.

[winfried-ripken]

Thanks Alp, for the clarification! I wasn't aware of this, I followed you suggestion to re-freeze the requirements.

[AlpAribal]

LGTM!