release: 2026.08.16 Arranxo (semi-hotfix) + fix CI dinit deps

New KDE Plasma (Minimal) entry makes this a semi-hotfix release:
- os-release: 2026.08.16 Arranxo (antergos-release pkgrel 4)
- branding: versionedName updated in branding.desc (pkgrel 4)
- CI: build in base-dinit container so makepkg dep-check can resolve
  dinit without conflicting with openrc (fixes cosmic-greeter-dinit build)

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     container:
-      image: artixlinux/artixlinux:base-openrc
+      image: artixlinux/artixlinux:base-dinit
 
     steps:
     - uses: actions/checkout@v4

packages/antergos-release/PKGBUILD

@@ -2,7 +2,7 @@
 
 pkgname=antergos-release
 pkgver=2026.08
-pkgrel=3
+pkgrel=4
 pkgdesc='Antergos NeXT release file'
 arch=('any')
 url="https://github.com/Antergos-NeXT"
@@ -16,11 +16,11 @@ package() {
     install -dm755 $pkgdir/etc
     cat > $pkgdir/usr/lib/os-release << EOF
 NAME="Antergos NeXT"
-PRETTY_NAME="Antergos NeXT 2026.08.11 Xeitoso"
+PRETTY_NAME="Antergos NeXT 2026.08.16 Arranxo"
 ID=antergos
 ID_LIKE=artix
-VERSION_ID=2026.08.11
-VERSION_CODENAME=xeitoso
+VERSION_ID=2026.08.16
+VERSION_CODENAME=arranxo
 BUILD_ID=rolling
 ANSI_COLOR="38;2;0;136;204"
 HOME_URL="https://github.com/Antergos-NeXT"

packages/calamares-branding-antergos-next/PKGBUILD

@@ -2,7 +2,7 @@
 
 pkgname=calamares-branding-antergos-next
 pkgver=2.0
-pkgrel=3
+pkgrel=4
 pkgdesc="Calamares branding for Antergos NeXT online installer"
 arch=('any')
 url="https://github.com/Antergos-NeXT"

packages/calamares-branding-antergos-next/branding.desc

@@ -14,10 +14,10 @@ navigation: qml,bottom
 strings:
     productName:         "Antergos NeXT"
     shortProductName:    "Antergos NeXT"
-    version:             "2026.08.11 Xeitoso"
-    shortVersion:        "2026.08.11"
-    versionedName:       "Antergos NeXT 2026.08.11 Xeitoso"
-    shortVersionedName:  "Antergos NeXT 2026.08.11"
+    version:             "2026.08.16 Arranxo"
+    shortVersion:        "2026.08.16"
+    versionedName:       "Antergos NeXT 2026.08.16 Arranxo"
+    shortVersionedName:  "Antergos NeXT 2026.08.16"
     bootloaderEntryName: "Antergos NeXT"
     productUrl:          "https://github.com/Antergos-NeXT"
     supportUrl:          "https://github.com/Antergos-NeXT"