main/postmarketos-ui-cosmic: update pmos-base-ui pw audio name

Signed-off-by: Clayton Craft <craftyguy@postmarketos.org>

[ci:skip-build]: loongarch64 CI runner temporarily broken

Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7786>

main/postmarketos-ui-cosmic/APKBUILD

@@ -3,7 +3,7 @@
 maintainer="Clayton Craft <clayton@craftyguy.net>"
 pkgname=postmarketos-ui-cosmic
 pkgver=2
-pkgrel=3
+pkgrel=4
 pkgdesc="COSMIC Desktop Environment from System76"
 url="https://system76.com/cosmic/"
 # Only tested on these archs.
@@ -17,7 +17,7 @@ depends="
 	gst-thumbnailers
 	polkit-elogind
 	postmarketos-base-ui
-	postmarketos-base-ui-audio-pipewire
+	postmarketos-base-ui-audio-backend-pipewire
 	postmarketos-base-ui-networkmanager
 	power-profiles-provider
 	upower