Release a new version to Crates.io to use cpal with ndk 0.8

[ameknite]

Objective:

Use cpal with ndk 0.8

In #820 ndk was updated to 0.8. but a new version to Crates.io has not being released.

alternatives:

[dependencies]
cpal = { git = "https://github.com/RustAudio/cpal", branch = "master" }

[evilpie]

Additionally updating alsa to 0.9 would get rid of the outdated nix dependency.

[ameknite]

fixed, 0.15.3 has been released
#856