Fix Forge Install Container

frolvlad's oraclejdk image died and the stock openjdk image works fine for this,

Author: parkervcp

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

@@ -18,7 +18,7 @@
     "scripts": {
         "installation": {
             "script": "#!\/bin\/ash\r\n# Forge Installation Script\r\n#\r\n# Server Files: \/mnt\/server\r\napk update\r\napk add curl\r\n\r\nif [ -z \"$MC_VERSION\" ] || [ \"$MC_VERSION\" == \"latest\" ]; then\r\n  FORGE_VERSION=$(curl -sl https:\/\/files.minecraftforge.net\/maven\/net\/minecraftforge\/forge\/ | grep -A1 Latest | grep  -o -e '[1]\\.[0-9][0-9]\\?\\.\\?[0-9]\\?[0-9] - [0-9][0-9]\\.[0-9][0-9]\\.[0-9]\\?[0-9]\\.[0-9][0-9][0-9][0-9]' | sed 's\/ \/\/g')\r\nelse\r\n  FORGE_VERSION=$(curl -sl https:\/\/files.minecraftforge.net\/maven\/net\/minecraftforge\/forge\/index_$MC_VERSION.html | grep -A1 Latest | grep  -o -e '[1]\\.[0-9][0-9]\\?\\.\\?[0-9]\\?[0-9] - [0-9][0-9]\\.[0-9][0-9]\\.[0-9]\\?[0-9]\\.[0-9][0-9][0-9][0-9]' | sed 's\/ \/\/g')\r\nfi\r\n\r\ncd \/mnt\/server\r\n\r\necho -e \"\\nDownloading Forge Version $FORGE_VERSION\\n\"\r\ncurl -sS https:\/\/files.minecraftforge.net\/maven\/net\/minecraftforge\/forge\/$FORGE_VERSION\/forge-$FORGE_VERSION-installer.jar -o installer.jar\r\ncurl -sS https:\/\/files.minecraftforge.net\/maven\/net\/minecraftforge\/forge\/$FORGE_VERSION\/forge-$FORGE_VERSION-universal.jar -o $SERVER_JARFILE\r\n\r\necho -e \"\\nInstalling forge server usint the installer jar file.\\n\"\r\njava -jar installer.jar --installServer\r\n\r\necho -e \"\\nDeleting installer jar file and cleaning up.\\n\"\r\nrm -rf installer.jar",
-            "container": "frolvlad\/alpine-oraclejdk8:cleaned",
+            "container": "openjdk:8-alpine",
             "entrypoint": "ash"
         }
     },