Upgrade to Python 3.12

.github/workflows/build_and_test_using_docker.yml

@@ -14,10 +14,10 @@ jobs:
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
 
-      - name: Set up Python 3.11
+      - name: Set up Python 3.12
         uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c  # v5.0.0
         with:
-          python-version: 3.11
+          python-version: 3.12
 
       - name: Install dependencies
         run: |-

.github/workflows/pre_commit_detect_outdated.yml

@@ -20,10 +20,10 @@ jobs:
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
 
-      - name: Set up Python 3.11
+      - name: Set up Python 3.12
         uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c  # v5.0.0
         with:
-          python-version: 3.11
+          python-version: 3.12
 
       - name: Install pre-commit
         run: |-

.github/workflows/pre_commit_run.yml

@@ -14,10 +14,10 @@ jobs:
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
 
-      - name: Set up Python 3.11
+      - name: Set up Python 3.12
         uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c  # v5.0.0
         with:
-          python-version: 3.11
+          python-version: 3.12
 
       - name: Install pre-commit
         run: |-

.pre-commit-config.yaml

@@ -6,7 +6,7 @@ repos:
     rev: v3.15.0
     hooks:
       - id: pyupgrade
-        args: ['--py311-plus']
+        args: ['--py312-plus']
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.5.0

docker/Dockerfile

@@ -1,7 +1,7 @@
 # Copyright (C) 2021 Sebastian Pipping <sebastian@pipping.org>
 # Licensed under GNU Affero GPL v3 or later
 
-FROM python:3.11-alpine
+FROM python:3.12-alpine
 
 RUN echo '@edge-community https://dl-cdn.alpinelinux.org/alpine/edge/community' >> /etc/apk/repositories \
         && \