Fixed install confirmation; removed curl once finished

Dockerfile

@@ -4,8 +4,9 @@ USER root
 
 ARG MC_SERVER_VERSION
 
-RUN apt update && apt install curl \
+RUN apt update && apt install -y curl \
     && curl -o /MinecraftServer.zip https://minecraft.azureedge.net/bin-linux/bedrock-server-${MC_SERVER_VERSION}.zip \
+    && apt purge curl \
     && rm /var/lib/apt/lists/*
 
 COPY /entrypoint.sh /