Feature to ignore/sanitize some bindep requirements

[anshulbehl]

Currently the sanitize_requirements only works with python requirements and doesn't work for the binary dependencies. While working with some partner collections we have noticed below requirements in bindep.txt

# This is a cross-platform list tracking distribution packages needed by this collection;
# see https://docs.openstack.org/infra/bindep/ for additional information.

python >=3.6,<=3.8

This causes failure while building as below with ubi8 images

There are following alternatives for "python": python2, python36, python38
Error: Unable to find a match: python
STEP 12: FROM registry-proxy.engineering.redhat.com/rh-osbs/ansible-automation-platform-ee-minimal:ansible-automation-platform-2.0-rhel-8-containers-candidate-50443-20210329152500
Error: error building at STEP "RUN assemble": error while running runtime: exit status 1

python as a requirement should be ignored in the bindep file[python38 is already installed in the base images] and for that we would probably need to create a feature to sanitise binary dependencies.

[AlanCoding]

In cases we are relying on things like python38-devel

https://github.com/ansible/awx-ee/blob/devel/_build/bindep_combined.txt#L10

We might leave those untouched, I'm not sure.

[anshulbehl]

for this one I think we only need to sanitise when we see python in bindep file

[AlanCoding]

Could you link to a case of this? This shouldn't be too hard to implement but I want to know a little better what we're targeting.