Update sheet.yml

Author: NiklasMerz

.github/workflows/sheet.yml

@@ -15,11 +15,11 @@ jobs:
       with:
         netlify-token: ${{ secrets.NETLIFY_TOKEN }}
         netlify-site-id: ${{ secrets.NETLIFY_SITE }}
-    - uses: canonical-web-and-design/csv-to-google-spreadsheet
+    - uses: canonical-web-and-design/csv-to-google-spreadsheet@master
       with:
         csv_path: pageviews.csv
         spreadsheet_id: ${{ secrets.google_spreadsheet_id }}
         worksheet: 0
         append_content: true
         google_service_account_email: ${{ secrets.google_service_account_email }}
-        google_service_account_private_key: ${{ secrets.google_service_account_private_key }}
+        google_service_account_private_key: ${{ secrets.google_service_account_private_key }}