Rework github actions

[YarikTH]

Description

Current scheme works fine, but there is place for improvement.

It seems that current approach of binding all the builds in the single matrix works not so good as I thought. It allows to reduce duplication, but cost is - less flexibility and ugly actions summary.

Current single matrix approach:

nlohmann/json approach:

Second is nice and clean. But has a lot of repetitions in yaml that I assume fixable with yaml's subtree substitutions.

I think it's better to mimic nlohmann/json build configurations as much as it makes sense. They have good middle ground between testing all the possible combinations of parameters and testing just a few configurations.