Update Zebra and Giraffe to .NET Core 3.1.1 (#5421)

frameworks/FSharp/giraffe/giraffe-stripped.dockerfile

@@ -1,9 +1,9 @@
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
+FROM mcr.microsoft.com/dotnet/core/sdk:3.1.101 AS build
 WORKDIR /app
 COPY src/App .
 RUN dotnet publish -c Release -o out
 
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime
+FROM mcr.microsoft.com/dotnet/core/aspnet:3.1.1 AS runtime
 ENV ASPNETCORE_URLS http://+:8080
 WORKDIR /app
 COPY --from=build /app/out ./

frameworks/FSharp/giraffe/giraffe-utf8direct.dockerfile

@@ -1,9 +1,9 @@
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
+FROM mcr.microsoft.com/dotnet/core/sdk:3.1.101 AS build
 WORKDIR /app
 COPY src/App .
 RUN dotnet publish -c Release -o out
 
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime
+FROM mcr.microsoft.com/dotnet/core/aspnet:3.1.1 AS runtime
 ENV ASPNETCORE_URLS http://+:8080
 WORKDIR /app
 COPY --from=build /app/out ./

frameworks/FSharp/giraffe/giraffe-utf8json.dockerfile

@@ -1,9 +1,9 @@
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
+FROM mcr.microsoft.com/dotnet/core/sdk:3.1.101 AS build
 WORKDIR /app
 COPY src/App .
 RUN dotnet publish -c Release -o out
 
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime
+FROM mcr.microsoft.com/dotnet/core/aspnet:3.1.1 AS runtime
 ENV ASPNETCORE_URLS http://+:8080
 WORKDIR /app
 COPY --from=build /app/out ./

frameworks/FSharp/giraffe/giraffe.dockerfile

@@ -1,9 +1,9 @@
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
+FROM mcr.microsoft.com/dotnet/core/sdk:3.1.101 AS build
 WORKDIR /app
 COPY src/App .
 RUN dotnet publish -c Release -o out
 
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime
+FROM mcr.microsoft.com/dotnet/core/aspnet:3.1.1 AS runtime
 ENV ASPNETCORE_URLS http://+:8080
 WORKDIR /app
 COPY --from=build /app/out ./

frameworks/FSharp/zebra/zebra-simple.dockerfile

@@ -1,9 +1,9 @@
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
+FROM mcr.microsoft.com/dotnet/core/sdk:3.1.101 AS build
 WORKDIR /app
 COPY src/App .
 RUN dotnet publish -c Release -o out
 
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime
+FROM mcr.microsoft.com/dotnet/core/aspnet:3.1.1 AS runtime
 ENV ASPNETCORE_URLS http://+:8080
 WORKDIR /app
 COPY --from=build /app/out ./

frameworks/FSharp/zebra/zebra.dockerfile

@@ -1,9 +1,9 @@
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
+FROM mcr.microsoft.com/dotnet/core/sdk:3.1.101 AS build
 WORKDIR /app
 COPY src/App .
 RUN dotnet publish -c Release -o out
 
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime
+FROM mcr.microsoft.com/dotnet/core/aspnet:3.1.1 AS runtime
 ENV ASPNETCORE_URLS http://+:8080
 WORKDIR /app
 COPY --from=build /app/out ./