Test Python 3.7 and 3.11

Signed-off-by: Stefan Marr <git@stefan-marr.de>

.github/workflows/ci.yml

@@ -5,13 +5,20 @@ on: [push, pull_request]
 jobs:
   test-linux:
     runs-on: ubuntu-latest
-    name: Ubuntu Latest
+    name: "Ubuntu Latest ${{ matrix.python-version }}"
+
+    strategy:
+      matrix:
+        python-version: ["3.7", "3.11"]
+
     steps:
       - name: Checkout ReBench
         uses: actions/checkout@v3
 
       - name: Setup Python
         uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
 
       - name: Install Dependencies
         run: pip install .