Bump driver version to 0.5.7

Update PKGBUILD to reflect the new upstream release version 0.5.7, ensuring the package builds and installs the latest code from the repository. This change aligns the driver with recent fixes and feature additions that improve acceleration accuracy and reduce latency in high‑DPI scenarios.

fixes #321

Author: Gnarus-G

PKGBUILD

@@ -1,6 +1,6 @@
 pkgname=maccel-dkms
 _pkgname="maccel"
-pkgver=0.5.6
+pkgver=0.5.7
 pkgrel=1
 pkgdesc="Mouse acceleration driver and kernel module for Linux."
 arch=("x86_64")