Create workflow to automatically publish a new release

[ukriu]

Adds a workflow to automatically release a new release.
Requires update.json's versionCode to be updated to release a new release.
If the versionCode has not been changed, an artifact will be uploaded with the latest module.

[backslashxx]

Thanks for your work.
Staged this and it works.
https://github.com/backslashxx/bindhosts_staging/releases

Though, formality concerns.
Will you rebase this without that merge commit that got included?
also without that new version release yet.

Another way around is I do fixes on my side.
you can check here
https://github.com/backslashxx/bindhosts/commits/staging-workflows/

[backslashxx]

please squash the restore zip with the "workflow: create release workflow" commit
no need to do two commits if you just delete and restore

--
I checked sha256sums so to be honest, its actually fine, they do match, but don't do this type of thing again.

user@7600es:[/tmp]: $ sha512sum module.zip.deleted
b0bb7dc5e10dbe733c809af8b611c250086b94be990b402477f9a4c4410a621e477a3f79082e716b74527be08fb76ab4a7a96506e3f4f26dbf6d0f476125bb8a  module.zip.deleted
user@7600es:[/tmp]: $ sha512sum module.zip.restored
b0bb7dc5e10dbe733c809af8b611c250086b94be990b402477f9a4c4410a621e477a3f79082e716b74527be08fb76ab4a7a96506e3f4f26dbf6d0f476125bb8a  module.zip.restored

[ukriu]

Sorry my bad. Should have thought about that before.

[backslashxx]

Reabsed on top of master and merged!
Thanks for your contribution.

I will now be preparing a release.

[ukriu]

Reabsed on top of master and merged! Thanks for your contribution.

I will now be preparing a release.

When publishing a new version don't forget to change the download link to something like this:

{
  "version": "v1.7.2",
  "versionCode": 172,
  "zipUrl": "https://github.com/backslashxx/bindhosts/releases/latest/download/bindhosts_172.zip",
  "changelog": "https://raw.githubusercontent.com/backslashxx/bindhosts/master/CHANGELOG.md"
}

And do make sure to delete the module.zip after the next release!

[backslashxx]

small fixup was needed but it all worked in the end, cheers.

a144d24