修改.net6 dockerfile

Dockerfile

@@ -1,6 +1,6 @@
 #See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
 
-FROM mcr.microsoft.com/dotnet/aspnet:6.0-buster-slim AS base
+FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
 WORKDIR /app
 EXPOSE 518
 EXPOSE 1888
@@ -9,7 +9,7 @@ RUN apt-get update
 RUN apt-get install libgdiplus -y
 RUN apt-get install nano -y
 
-FROM mcr.microsoft.com/dotnet/sdk:6.0-buster-slim AS build
+FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
 WORKDIR /src
 
 COPY ["IoTGateway/IoTGateway.csproj", "IoTGateway/"]