fix: use spec & key

Author: ninoseki

.github/workflows/python.yml

@@ -18,7 +18,9 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.10", 3.11, 3.12, 3.13]
-        pandas-version: [">2.2,<3.0", "3.0,<4.0"]
+        pandas:
+          - {spec: ">2.2,<3.0", key: "2.x"}
+          - {spec: ">=3.0,<4.0", key: "3.x"}
     defaults:
       run:
         working-directory: ./python-client
@@ -32,10 +34,10 @@ jobs:
       - uses: actions/cache@v4
         with:
           path: ~/.cache/uv
-          key: uv-${{ matrix.python-version }}-${{ matrix.pandas-version }}-${{ hashFiles('uv.lock') }}
+          key: uv-${{ matrix.python-version }}-${{ matrix.pandas.key }}-${{ hashFiles('uv.lock') }}
       - run: |
           uv sync --frozen --all-extras
-          uv pip install "pandas${{ matrix.pandas-version }}"
+          uv pip install "pandas${{ matrix.pandas.spec }}"
       - run: uv run pytest
   lint:
     runs-on: ubuntu-latest