Update Arch kernel to 5.7.4

pkg/arch/kernel/PKGBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
 
 pkgbase=linux-surface
-pkgver=5.7.2.arch1
+pkgver=5.7.4.arch1
 pkgrel=1
 pkgdesc='Linux'
 _fullver=${pkgver%.*}-${pkgver##*.}
@@ -35,7 +35,7 @@ validpgpkeys=(
   '647F28654894E3BD457199BE38DBBDC86092693E'  # Greg Kroah-Hartman
   'A2FF3A36AAA56654109064AB19802F8B0D70FC30'  # Jan Alexander Steffens (heftig)
 )
-sha256sums=('9f64776121263e3e6bd8dd7a371d6d2cca5d193b2c3e19cb6e7904c374fb8b28'
+sha256sums=('76a67d54e3c508790efec1580f4d4288176a80dd6da10767c3519cb0b1715a5b'
             '623601ed9d7879dd9dba1cd50fc8051f9db508b49b4fc0c47c5a9eb9165fc04e'
             '4662d1c8c5557e7531cfd4175809e832aa2d96771454f9631f5c09c2c40eb881'
             '8dbaa21d2c03621b0c5d96c4fbcc7a839bea5a34a5f2279a409c3b404756e753'