Update Dockerfile

test/NetCorePal.Web/Dockerfile

@@ -1,23 +1,23 @@
 #See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
 
-FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
 USER app
 WORKDIR /app
 EXPOSE 8080
 EXPOSE 8081
 
-FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
 WORKDIR /src
 COPY ["Directory.Build.props", "."]
 COPY ["NuGet.config", "."]
 COPY ["test/NetCorePal.Web/NetCorePal.Web.csproj", "test/NetCorePal.Web/"]
 RUN dotnet restore "test/NetCorePal.Web/NetCorePal.Web.csproj"
 COPY . .
 WORKDIR "/src/test/NetCorePal.Web"
-RUN dotnet build "NetCorePal.Web.csproj" -c Release -f net8.0 -o /app/build
+RUN dotnet build "NetCorePal.Web.csproj" -c Release -f net9.0 -o /app/build
 
 FROM build AS publish
-RUN dotnet publish "NetCorePal.Web.csproj" -c Release -f net8.0 -o /app/publish /p:UseAppHost=false
+RUN dotnet publish "NetCorePal.Web.csproj" -c Release -f net9.0 -o /app/publish /p:UseAppHost=false
 
 FROM base AS final
 WORKDIR /app