Update installers to use latest Alpine (#1469)

database/seeds/eggs/minecraft/egg-bungeecord.json

@@ -18,7 +18,7 @@
     "scripts": {
         "installation": {
             "script": "#!\/bin\/ash\n# Bungeecord Installation Script\n#\n# Server Files: \/mnt\/server\napk update\napk add curl\n\ncd \/mnt\/server\n\nif [ -z \"${BUNGEE_VERSION}\" ] || [ \"${BUNGEE_VERSION}\" == \"latest\" ]; then\n    BUNGEE_VERSION=\"lastStableBuild\"\nfi\n\ncurl -o ${SERVER_JARFILE} https:\/\/ci.md-5.net\/job\/BungeeCord\/${BUNGEE_VERSION}\/artifact\/bootstrap\/target\/BungeeCord.jar",
-            "container": "alpine:3.4",
+            "container": "alpine:3.9",
             "entrypoint": "ash"
         }
     },
@@ -42,4 +42,4 @@
             "rules": "required|regex:\/^([\\w\\d._-]+)(\\.jar)$\/"
         }
     ]
-}
+}