Add dataset dependency to tutorial workflow

.github/workflows/tutorials.yaml

@@ -30,7 +30,7 @@ jobs:
     - name: Install pip dependencies
       if: steps.cache.outputs.cache-hit != 'true'
       run: |
-        pip install -r requirements/required.txt -r requirements/docs.txt -r requirements/tests.txt planetary_computer pystac
+        pip install -r requirements/required.txt -r requirements/docs.txt -r requirements/tests.txt -r requirements/datasets.txt planetary_computer pystac
         pip cache purge
     - name: List pip dependencies
       run: pip list