Dropped py3.8, added py3.12 & py3.13

Author: etpeterson

.github/workflows/unit_test.yml

@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         # exclude:
         #   - os: macos-latest
         #     python-version: "3.7"