Example tests download firmware-action from releases instead of compilation

[AtomicFS]

Oh, I know now why it behaves the way it does. In examples it is not compiling the firmware-action binary, it is fetching it from releases on GitHub. But we had some breaking changes since.

Problem is that the example CI does not detect that firmware-action needs to be compiled in this instance. It detects if compilation is needed based on diff of action/ directory compared to main and not compared to latest release.

Originally posted by @AtomicFS in #410 (comment)

[AtomicFS]

dorny/paths-filter has the option to change this, it is called base, but of course it is disabled on pull_request event because why wouldn't it be.

There is a closed issue about it