osu-lazer-bin: use overrideAttrs with nixpkgs' package

[Guanran928]

Motivation: #137 (comment)

Still experimental, don't expect anything, commits will be squashed when ready to merge.

In the long-term, it might be worthwhile to just override Nixpkgs' package definition, though it might not be trivial since the Nixpkgs' package is conditional and depends on architecture and OS.

I just made a overrideAttrs version of osu-stable-bin and somehow made the update script working.
It's not perfect, but it works for me.
I don't really know anything about bash, so I probably need someone that knows bash to help me a little bit.

[Guanran928]

LOL, I published the PR too soon, I downgraded nixpkgs and it isn't even working properly, will fix.