Create reusable action for `releases.yaml` to avoid code duplication

[volodya-lombrozo]

Currently, reusing releases.yaml in other projects is impossible. To implement the same logic in other repositories would require copying Python scripts and YAML configs across repos. We should create a reusable GitHub Action instead, this would simplify this process. This issue comes from this comment.

[volodya-lombrozo]

@yegor256 What do you think?

[yegor256]

@volodya-lombrozo reusable by other projects, or only by us in our org?

[volodya-lombrozo]

@yegor256 I guess, it's enough to have it for our org only. Don't think anybody else would need it.

[yegor256]

@volodya-lombrozo I'm not sure how the existing script can be reused. It looks very much coupled with the details of this particular repo. Don't you think?

[volodya-lombrozo]

@yegor256 I checked it very briefly and it seems we can reuse it. We will need to move the python scripts together with the new action. Most probably, we will need to "decouple" them, but it seems possible. Do you know some particular places that can make it impossible?