Bump to python 3.12

.devcontainer.json

@@ -1,6 +1,6 @@
 {
     "name": "alengwenus/ha-sma-ev-charger",
-    "image": "mcr.microsoft.com/devcontainers/python:3.11-bullseye",
+    "image": "mcr.microsoft.com/devcontainers/python:3.12-bullseye",
     "postCreateCommand": "scripts/setup",
     "forwardPorts": [
         8123

.github/workflows/ci.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.12"]
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}

.github/workflows/install_dependencies/action.yaml

@@ -4,7 +4,7 @@ inputs:
   python-version:
     description: 'Python version'
     required: true
-    default: '3.11'
+    default: '3.12'
   core-version:
     description: 'Home Assistant core version'
     required: false

.github/workflows/pytest.yaml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.12"]
         core-version: ["2023.9.0", "2024.1.5", "dev"]
     steps:
       - name: Check out code from GitHub

.ruff.toml

@@ -1,6 +1,6 @@
 # The contents of this file is based on https://github.com/home-assistant/core/blob/dev/pyproject.toml
 
-target-version = "py310"
+target-version = "py312"
 
 select = [
     "B002",    # Python does not support the unary prefix increment