Update Python to version 3.12 (#31)

* Python 3.12 has better performance

.github/workflows/lint.yml

@@ -15,7 +15,7 @@ jobs:
         checks: write
     strategy:
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.12"]
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/pythonpublish.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v1
       with:
-        python-version: '3.11'
+        python-version: '3.12'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.11-alpine
+FROM python:3.12-alpine
 
 # Install package
 WORKDIR /code