Merge pull request #447 from neutrinoceros/test_on_cp312

TST: switch bleeding-edge CI to Python 3.12

.github/workflows/bleeding-edge.yaml

@@ -20,7 +20,7 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-    name: Python3.11-dev
+    name: Python3.12-dev
     timeout-minutes: 60
 
     concurrency:
@@ -35,7 +35,7 @@ jobs:
     - name: Set up Python Dev Version
       uses: actions/setup-python@v4
       with:
-        python-version: '3.11-dev'
+        python-version: '3.12-dev'
 
     - name: Install dependencies
       run: |

pyproject.toml

@@ -124,6 +124,7 @@ filterwarnings = [
     "ignore:FigureCanvasAgg is non-interactive, and thus cannot be shown:UserWarning",
     "ignore:In accordance with NEP 32:DeprecationWarning",
     "ignore:distutils Version classes are deprecated. Use packaging.version instead.:DeprecationWarning",
+    'ignore:datetime\.datetime\.utcfromtimestamp\(\) is deprecated:DeprecationWarning', # https://github.com/dateutil/dateutil/pull/1285
 ]
 
 [tool.coverage.run]