Bump Arch to 5.5.6-arch1.

pkg/arch/kernel/PKGBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
 
 pkgbase=linux-surface
-pkgver=5.5.4.arch1
+pkgver=5.5.6.arch1
 pkgrel=1
 pkgdesc='Linux'
 _fullver=${pkgver%.*}-${pkgver##*.}
@@ -35,7 +35,7 @@ validpgpkeys=(
   '8218F88849AAC522E94CF470A5E9288C4FA415FA'  # Jan Alexander Steffens (heftig)
 )
 sha256sums=('c5e33a89bd8fdac11278f0b441da98870e4421a4df2db685123d7981c94177b4'
-            'eeb60c19586bf5855eeaeac8323b0012107bfa74f9efa0c8e129d979d38f1f31'
+            'a841aa011edf6bae0ffbe8ead8177e5056de5a6d7333bb96e16917903de4d868'
             'c557ce5218ec4e169c385361724f33449f21a2a00b26e7d84a2640a2c0f9dcd6'
 
             '3907b6b09f8ae073bde1b483da2ea0570bfff4a95f3e99354cc24d374a6efa7b'  # 0001-surface3-power.patch