Fix "Release" Github Action

[GrantJL]

Currently the Release github action does not checkout submodules, thus resulting in build failure due to missing deps.

Update the release action to ensure submodules, and any other dependacies are corrently accounted for.

[GrantJL]

Not sure if we really care about this, it failing has zero real impact besides getting notification of a failure... Should just remove the GitHub action altogether.

[smallest-cock]

I got the build/release action working on my fork if you still care about this. I can also make it post the change notes in the release markdown, which would only require a CHANGELOG.md to be added to project root