upgpkg: minecraft-server 1.12-1

Require java-runtime-headless version 8 since the minecraft server
recently switched to it.

.SRCINFO

@@ -6,7 +6,7 @@ pkgbase = minecraft-server
 	install = minecraft-server.install
 	arch = any
 	license = custom
-	depends = java-runtime-headless
+	depends = java-runtime-headless=8
 	depends = screen
 	depends = sudo
 	depends = bash

PKGBUILD

@@ -9,7 +9,7 @@ pkgdesc="Minecraft server unit files, script, and jar"
 arch=('any')
 url="https://minecraft.net/"
 license=('custom')
-depends=('java-runtime-headless' 'screen' 'sudo' 'bash' 'awk' 'sed')
+depends=('java-runtime-headless=8' 'screen' 'sudo' 'bash' 'awk' 'sed')
 optdepends=("tar: needed in order to create world backups"
 	"netcat: required in order to suspend an idle server")
 conflicts=('minecraft-server-systemd' 'minecraft-canary')