Update to 0.134.0 version of definition

.devcontainer/devcontainer.json

@@ -1,11 +1,12 @@
+// For format details, see https://aka.ms/vscode-remote/devcontainer.json or this file's README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.134.0/containers/python-3
 {
-	"name": "Python 3 Sample",
-	"context": "..",
+	"name": "Python 3",
 	"build": {
 		"dockerfile": "Dockerfile",
-		// Update 'VARIANT' to pick a Python version. Rebuild the container 
-		// if it already exists to update. Available variants: 3, 3.6, 3.7, 3.8 
-		"args": { "VARIANT": "3.7" }
+		"context": "..",
+		// Update 'VARIANT' to pick a Python version: 3, 3.6, 3.7, 3.8 
+		"args": { "VARIANT": "3" }
 	},
 
 	// Set *default* container specific settings.json values on container create.