Moved validate and update datasets to scripts folder

Author: fcostaoliveira

.github/workflows/validate-datasets.yml

@@ -30,9 +30,8 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
         
     - name: Validate datasets.json
       run: |
         echo "Running dataset validation..."
-        python validate_datasets.py
+        python scripts/validate_datasets.py