fix: Upload to prod server not working

Description of the Changes

There is a step in push.yml that is not succeeding. It seems to just create a version tag. Upon creating the version tag, the tag.yml workflow runs. The last step in this workflow, after creating a Release, is to upload the site to the prod server.

Given that we wanted to remove the tag and release workflows from this repo anyway, I moved the upload step directly to the push.yml workflow, and skip the step to create a new version tag and new release.

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Check List

[x] Changes have been done against main branch, and PR does not conflict
[x] PR title follows the convention: <docs/feat/fix/chore>(optional scope): <description>, e.g: fix: minor typos in code

This change is

starknet-io / starknet-docs