fix: add PRIVATE_KEY env var to whitelist step in dapp-deploy workflow

Author: abbesBenayache

.github/workflows/dapp-deploy.yml

@@ -137,6 +137,7 @@ jobs:
       - name: Add resource to whitelist
         env:
           CONTRACT_ADDRESS: ${{ secrets.WEB3MAIL_WHITELIST_CONTRACT_ADDRESS }}
+          PRIVATE_KEY: ${{ secrets.WEB3MAIL_DAPP_OWNER_PRIVATEKEY }}
         run: |
           cd node_modules/whitelist-smart-contract
           export ADDRESS_TO_ADD=$(cat ../../deployment-dapp/.app-address)