Add noetic to GitHub actions jobs

[hslusarek]

This PR adds the GitHub action support for ROS noetic.

ToDo

• uncomment unittest_monitoring_frame_msg and fix usage of fmt
• Is there a better way to discriminate between different googletest versions than using the ROS_VERSION_MINOR macro? (especially for pure googletests)
• Update readme: main branch targets melodic & noetic

[agutenkunst]

Why do we need two seperate workflow files? What is the advantage?

[martiniil]

I think it is just a matter of taste. Correct, @SansoneG ?
I like it, because it is less confusing.

[SansoneG]

The primary reason was to be able to generate CI-Badges for melodic and noetic separately.
Otherwise it is a matter of preference as @martiniil mentioned.

[agutenkunst]

The diff seems to indicate this was was actually git mv from the original?

[martiniil]

I don't know. Maybe this file simply has more similarities with the original than ci_action_melodic.yml?

[agutenkunst]

What is the reason behind this?

[martiniil]

I don't know, why it was 3.9 before. Do you know the reason?

Anyways, now the version corresponds to the default on ubuntu focal.

[martiniil]

The test-build with clang-tidy enabled fails on noetic. I can reproduce this in a docker container. It says that it cannot match a template member function when trying to format a psen_scan_v2::monitoring_frame::Message.

I don't understand that this only happens when clang-tidy is enabled. It seems the following check fails but should be true:

is_constructible<fmt::v6::internal::fallback_formatter<psen_scan_v2::monitoring_frame::Message, char, void>>::value

I attach the full error log.
catkin_Log.txt

[agutenkunst]

Please add the information to the Readme that main targets melodic and noetic.