CU-868d85dv8 Fixing docker typo

Author: ucswift

Web/Resgrid.Web/Dockerfile

@@ -1,7 +1,7 @@
 #See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
 ARG BUILD_VERSION=3.5.0
 
-FROM mcr.microsoft.com/dotnet/aspnet:aspnet:9.0.3-noble-amd64 AS base
+FROM mcr.microsoft.com/dotnet/aspnet:9.0.3-noble-amd64 AS base
 ARG BUILD_VERSION
 WORKDIR /app
 EXPOSE 80