Feat(eos_designs): Configure l3 interfaces BGP peers even when underlay_bgp is False

[gmuloc]

Change Summary

cf title

Related Issue(s)

Fixes #4542

Component(s) name

arista.avd.eos_designs

Proposed changes

in structured_config/underlay/router_bgp.py always render any BGP peer configured under node l3_interfaces.

How to test

molecule scenario added

Checklist

Repository Checklist

• My code has been rebased from devel before I start
• I have read the CONTRIBUTING document.
• My change requires a change to the documentation and documentation have been updated accordingly.
• I have updated molecule CI testing accordingly. (check the box if not applicable)

[github-actions]

Review docs on Read the Docs

To test this pull request:

# Create virtual environment for this testing below the current directory
python -m venv test-avd-pr-4543
# Activate the virtual environment
source test-avd-pr-4543/bin/activate
# Install all requirements including PyAVD
pip install "pyavd[ansible] @ git+https://github.com/gmuloc/avd.git@issue/4252#subdirectory=python-avd" --force
# Point Ansible collections path to the Python virtual environment
export ANSIBLE_COLLECTIONS_PATH=$VIRTUAL_ENV/ansible_collections
# Install Ansible collection
ansible-galaxy collection install git+https://github.com/gmuloc/avd.git#/ansible_collections/arista/avd/,issue/4252 --force
# Optional: Install AVD examples
cd test-avd-pr-4543
ansible-playbook arista.avd.install_examples

[gmuloc]

LGTM

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud