FIX download and cache the data

.github/workflows/test.yml

@@ -28,6 +28,12 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+    - name: Cache the data
+      uses: actions/cache@v4
+      with:
+        key: data-${{ hashFiles('**/download_data.py') }}
+        path: ./data
+
     - name: Setup Conda
       uses: conda-incubator/setup-miniconda@v2
       with:
@@ -39,6 +45,9 @@ jobs:
     - name: Install the ramp-kit's dependencies
       run: pip install -r requirements.txt
 
+    - name: Download data
+      run: python download_data.py
+
     - name: Ramp test
       run: ramp-test
 
@@ -62,6 +71,13 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+
+    - name: Cache the data
+      uses: actions/cache@v4
+      with:
+        key: data-${{ hashFiles('**/download_data.py') }}
+        path: ./data
+
     - name: Set up Python
       uses: actions/setup-python@v3
       with:
@@ -72,5 +88,8 @@ jobs:
         pip install seaborn nbconvert[test]
         pip install -r requirements.txt
 
+    - name: Download data
+      run: python download_data.py
+
     - name: Check the starting-kit notebook
       run: jupyter nbconvert --execute template_starting_kit.ipynb --to html --ExecutePreprocessor.kernel_name=python3