add matrix to test both pandas 1 and 2

Author: emilykl

.github/workflows/run-pytest.yml

@@ -80,14 +80,26 @@ jobs:
           python -m pytest -x test_init/test_lazy_imports.py
 
   test-optional-legacy-pandas:
-    name: Optional tests, Pandas 1 (Python 3.9, Pandas 1.2.4)
+    name: Optional tests (Python ${{ matrix.python-version }}, pandas ${{ matrix.pandas-version }}, numpy ${{ matrix.numpy-version }})
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - python-version: "3.9"
+            pandas-version: "==1.2.4"
+            numpy-version: "==1.26.4"
+            setuptools-version: "<82"
+          - python-version: "3.11"
+            pandas-version: "==2.3.3"
+            numpy-version: "==2.4.0"
+            setuptools-version: ""
     steps:
       - uses: actions/checkout@v6
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.9"
+          python-version: ${{ matrix.python-version }}
       - name: Set up Chrome for browser tests
         uses: ./.github/actions/setup-chrome-for-pytest
       - name: Install dependencies
@@ -96,7 +108,7 @@ jobs:
           uv venv
           source .venv/bin/activate
           uv sync --extra dev_optional
-          uv pip install pandas==1.2.4 numpy==1.26.4
+          uv pip install pandas${{ matrix.pandas-version }} numpy${{ matrix.numpy-version }} setuptools${{ matrix.setuptools-version }}
       - name: Test core
         run: |
           source .venv/bin/activate