Create release environments

[robertobandini]

Long story short: it seems that the best way to protect secrets ecc for example to do signign/publish ecc is to use a specific environment with its own secrets and require approval by a reviewer.
So, I think actually I'll create the envs needed and mark myself as the approver, so when we have a new release, for example, I'll approve the job using that specific env with specific secrets.

[robertobandini]

@dex4er fyi

[robertobandini]

@dex4er I assigned this issue also to you cause now you can create the other needed envs and contact me if needed.

[dex4er]

Now it is urgent as the release is almost prepared. @robertobandini please prepare the "signing" environment with the secrets the same as on nightly.

[robertobandini]

@dex4er I prepared a new environment here called "signing", can you try it? Thanks!

[dex4er]

Implemented and already used.