ci: don't run workflows twice when coming from local branches

[poliorcetics]

If we don't limit push to master, any repo-local branch will cause each job in CI to run twice, as can be seen here: https://github.com/hades-emu/Hades/pull/69

[marysaka]

@Arignir seems that you forgot to make the Accuracy workflow pr_request_target as secrets are missing for it to run

[Arignir]

Ok, I'll rework the necessary parts of the CI for this to run smoothly later tonight!

[Arignir]

Should be good, you can rebase 👍

[Arignir]

Thank you very much for your help 😍