Switch Azure Functions "latest" to 2.2

Author: Chuxel

containers/azure-functions-dotnetcore-latest/.devcontainer/Dockerfile renamed to containers/azure-functions-dotnetcore-2.2/.devcontainer/Dockerfile

@@ -3,7 +3,7 @@
 # Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
 #-------------------------------------------------------------------------------------------------------------
 
-FROM mcr.microsoft.com/dotnet/core/sdk:latest
+FROM mcr.microsoft.com/dotnet/core/sdk:2.2
 
 # Avoid warnings by switching to noninteractive
 ENV DEBIAN_FRONTEND=noninteractive

containers/azure-functions-dotnetcore-latest/.devcontainer/devcontainer.json renamed to containers/azure-functions-dotnetcore-2.2/.devcontainer/devcontainer.json

@@ -1,5 +1,5 @@
 {
-	"name": "Azure Functions & C# (.NET Core Latest)",
+	"name": "Azure Functions & C# (.NET Core 2.2)",
 	"dockerFile": "Dockerfile",
 	"appPort": 7071,