[CI] Add nuttx and nuttx-apps versions compatibility cross-checks.

[cederom]

Is your feature request related to a problem? Please describe.

• Many users reported recently that build is broken when nuttx and nuttx-apps repos are not in sync.
• This breaks commercial products using custom boards and apps that are based on NuttX.
• We should make sure that breaking changes between nuttx and nuttx-apps are avoided.

Describe the solution you'd like

• Add CI test to github runners that would verify if PR is not breaking nuttx and nuttx-apps compatibility.
• Both older nuttx for nuttx-apps change and older nuttx-apps for nuttx change should be performed.
• This way we should early detect and eliminate changes that break nuttx and nuttx-apps compatibility.
• What is the best point in time to verify against? Release? Previous week? N-5 commits? All of them? To be discussed :-)

Describe alternatives you've considered

• Manual testing and searching for fix after the change is merged is not enough and already results in dealing with fire, that results in time-cost on both customer, user, and developer side.

Verification

• I have verified before submitting the report.