main/postmarketos-base: Add alpine-release to replaces (MR 3372)

Upstream changed the alpine-base package. Conflicting files are now in
alpine-release instead of alpine-base.

main/postmarketos-base/APKBUILD

@@ -1,6 +1,6 @@
 pkgname=postmarketos-base
 pkgver=21
-pkgrel=0
+pkgrel=1
 pkgdesc="Meta package for minimal postmarketOS base"
 url="https://postmarketos.org"
 arch="noarch"
@@ -21,10 +21,13 @@ subpackages="
 	$pkgname-nofde
 	"
 options="!check"
+
+# alpine-base can be removed from here after 23.01 is out
 replaces="
 	alpine-base
 	alpine-baselayout
 	alpine-baselayout-data
+	alpine-release
 	busybox-initscripts
 	openrc
 	sudo