CI: upload the snap & snap_beta binaries to the GitHub release

[Mersho]

No description provided.

[knocte]

@Mersho I guess you tested this with a tag push in your fork, show me the commit of your fork that achieves this?

[Mersho]

@Mersho I guess you tested this with a tag push in your fork, show me the commit of your fork that achieves this?

here is the commit:

Mersho@ce7c330

and the tag:

https://github.com/Mersho/geewallet/tree/0.7.433.0

[knocte]

Arghhh I see you already gave this info in the github issue, nevermind.

I realised I want to have this process a bit different than RIM, please make it create the release only if the snap upload succeeded. My bad.