Add parallel CI builds for Python 3.12 and 3.13 (#326)

* Add parallel CI builds for Python 3.12 and 3.13

* Update test.yml

Author: eb8680

.github/workflows/test.yml

@@ -11,6 +11,9 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["'<3.13'", "'>=3.13'"]
     steps:
       - uses: actions/checkout@v4
 
@@ -21,7 +24,7 @@ jobs:
 
       - name: Install Python dependencies
         run: |
-          uv sync --all-extras --dev
+          uv sync --all-extras --dev --python ${{ matrix.python-version }}
           
       - name: Run tests
         env: