python: -3.8, +3.12

Bumps [black](https://github.com/psf/black) from 24.2.0 to 24.3.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](https://github.com/psf/black/compare/24.2.0...24.3.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/pythonpackage.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
 
     steps:
     - uses: actions/checkout@v3

.readthedocs.yml

@@ -3,12 +3,14 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.11"
+    python: "3.12"
   jobs:
-    post_install:
+    post_create_environment:
       - pip install poetry
-      - poetry config virtualenvs.create false
-      - poetry install --with=docs
+    post_install:
+      # VIRTUAL_ENV needs to be set manually for now.
+      # See https://github.com/readthedocs/readthedocs.org/pull/11152/
+      - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH poetry install --with docs
 
 sphinx:
   configuration: docs/source/conf.py

pyproject.toml

@@ -11,14 +11,14 @@ keywords = ["icalendar", "sync", "google", "calendar"]
 classifiers = [
     'License :: OSI Approved :: MIT License',
     'Operating System :: OS Independent',
-    'Programming Language :: Python :: 3.8',
     'Programming Language :: Python :: 3.9',
     'Programming Language :: Python :: 3.10',
-    'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
 ]
 
 [tool.poetry.dependencies]
-python = "^3.8"
+python = "^3.9"
 google-auth = "2.28.1"
 google-api-python-client = "2.120.0"
 icalendar = "5.0.11"