fix gh action by adding mimic_data_dir as cwd

Author: alistairewj

.github/workflows/duckdb.yml

@@ -21,14 +21,11 @@ jobs:
 
       - name: Download demo data
         uses: ./.github/actions/download-demo
-        with:
-            gcp-project-id: ${{ secrets.GCP_PROJECT_ID }}
-            gcp-sa-key: ${{ secrets.GCP_SA_KEY }}
 
       - name: Load icu/hosp data into duckdb
         run: |
           echo "Running duckdb build."
-          ./${BUILDCODE_PATH}/import_duckdb.sh
+          ./${BUILDCODE_PATH}/import_duckdb.sh ./
 
           echo `md5sum mimic4.db`