Simplify commands for jobs in push.yml

[ia]

• Please check if the PR fulfills these requirements

• The changes have been tested locally
• There are no breaking changes

• What kind of change does this PR introduce?
  Simplifying commands in push.yml.

• What is the current behavior?
  push.yml may contain extra commands.

• What is the new behavior (if this is a feature change)?
  Now since the permissions for script files are fixed and make-based build system is almost fully location-agnostic we can call some commands on github CI in a shorter way.

• Other information:
  Tested locally & successfully all the commands from push.yml but let's see what github CI will tell about that. I will check & double check the logs & artifacts to make sure that all the builds steps are being performed as expected after creating PR.

[ia]

I did check logs for all steps and they seem fine. I even downloaded some artifacts to make sure that the files where they supposed to be.

Just had one strange error which I couldn't reproduce - right after re-run it was gone. So it seems like some glitch in Link Time Optimization of GCC. 🤷‍♂️

[ia]

I did check logs for all steps and they seem fine. I even downloaded some artifacts to make sure that the files where they supposed to be.

Just had one strange error which I couldn't reproduce - right after re-run it was gone. So it seems like some glitch in Link Time Optimization of GCC. man_shrugging

It seems this issue is coming back sometimes. But I have no idea how it could be related to these changes, directly or indirectly. If I would have been forced to give any explanation, my very first thought is that maybe somehow make/parallel building involved: since lto1 can't read a section from file, not file itself, maybe file is not fully generated yet by the moment when lto1 tries to read section for optimization. 🤷‍♂️

Anyway, should we address this issue in anyway somehow considering that with the next re-run it probably will disappear? Should I let you know if I will be able to reproduce it locally somehow?