Drop python 3.8, add python 3.12

Author: cpsievert

.github/workflows/pytest.yaml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
       fail-fast: false
 
     steps:
@@ -57,10 +57,10 @@ jobs:
     needs: [build]
     steps:
       - uses: actions/checkout@v3
-      - name: "Set up Python 3.8"
+      - name: "Set up Python 3.12"
         uses: actions/setup-python@v4
         with:
-          python-version: "3.8"
+          python-version: "3.12"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip

setup.cfg

@@ -15,17 +15,17 @@ classifiers =
     Intended Audience :: Developers
     License :: OSI Approved :: MIT License
     Natural Language :: English
-    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
 project_urls =
     Bug Tracker = https://github.com/rstudio/py-shinywidgets/issues
     Documentation = https://github.com/rstudio/py-shinywidgets/
     Source Code = https://github.com/rstudio/py-shinywidgets/
 
 [options]
-python_requires = >=3.8
+python_requires = >=3.9
 packages = find:
 test_suite = tests
 include_package_data = True