Add support for Python 3.14

Author: hugovk

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
 
     steps:
       - name: Checkout
@@ -35,7 +35,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
         check_formatting: ['0']
         extra_name: ['']
         include:
@@ -50,6 +50,7 @@ jobs:
         if: "!endsWith(matrix.python, '-dev')"
         with:
           python-version: ${{ matrix.python }}
+          allow-prereleases: true
           cache: pip
           cache-dependency-path: test-requirements.txt
       - name: Setup python (dev)
@@ -71,7 +72,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
     steps:
       - name: Checkout
         uses: actions/checkout@v4