message: Function: add support for Python 3.9
diff: @@ -35,6 +35,7 @@ const supportedRuntimes = [
  lambda.Runtime.PYTHON_3_6,
  lambda.Runtime.PYTHON_3_7,
  lambda.Runtime.PYTHON_3_8,
  + lambda.Runtime.PYTHON_3_9,
  lambda.Runtime.DOTNET_CORE_1,
  lambda.Runtime.DOTNET_CORE_2,
  lambda.Runtime.DOTNET_CORE_2_1,
  @@ -83,6 +84,7 @@ export interface FunctionProps
  | "python3.6"
  | "python3.7"
  | "python3.8"
  + | "python3.9"
  | "dotnetcore1.0"
  | "dotnetcore2.0"
  | "dotnetcore2.1"
  