update CI to test against python 3.13

Signed-off-by: Grant Ramsay <seapagan@gmail.com>

Author: seapagan

.github/workflows/testing.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
@@ -29,8 +29,7 @@ jobs:
 
       - name: Run tests
         # For example, using `pytest`
-        run:
-          uv run --all-extras -p ${{ matrix.python-version }} pytest tests
+        run: uv run --all-extras -p ${{ matrix.python-version }} pytest tests
           --cov-report=xml
 
       - name: Run codacy-coverage-reporter