Update Python versions for tests.

Author: GrahamDumpleton

.github/workflows/main.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13-dev"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14-dev"]
     steps:
       - uses: "actions/checkout@v4"
       - uses: "actions/setup-python@v5"
@@ -43,7 +43,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13-dev"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14-dev"]
     steps:
       - uses: "actions/checkout@v4"
       - uses: "actions/setup-python@v5"