update image to latest and python to 3.10

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.8
+FROM python:3.10
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \

.devcontainer/devcontainer.json

@@ -1,6 +1,6 @@
 // See https://aka.ms/vscode-remote/devcontainer.json for format details.
 {
-	"image": "ghcr.io/ludeeus/devcontainer/integration:stable",
+	"image": "ghcr.io/ludeeus/devcontainer/integration:latest",
 	"name": "FPL integration development",
 	"context": "..",
 	"appPort": [