chore: add 3.13 to CI

.github/workflows/python-package.yml

@@ -1,7 +1,7 @@
 # This workflow will install Python dependencies, run tests and lint with a variety of Python versions
 # For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
 
-name: Python package
+name: Testing
 
 on:
   push:
@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.12"]
+        python-version: ["3.12", "3.13"]
     steps:
     - uses: actions/checkout@v4
     - name: Install poetry
@@ -41,6 +41,7 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'poetry'
+        allow-prereleases: true
     - name: Install dependencies
       run: |
         poetry env use ${{ matrix.python-version }}