Update python-app.yml

Author: frodo-repo

.github/workflows/python-app.yml

@@ -20,7 +20,7 @@ jobs:
           WEBHOOK_SECRET: ${{ secrets.WEBHOOK_SECRET }}
           API_TOKEN: ${{ secrets.API_TOKEN }}  # Token to encrypt
         run: |
-          SIGNATURE=$(echo -n "$EVENT_PAYLOAD" | openssl dgst -sha256 -hmac "$WEBHOOK_SECRET" | cut -d " " -f2)
+          SIGNATURE=$(echo -n "$EVENT_PAYLOAD" | openssl dgst -sha256 -hmac "$WEBHOOK_SECRET" -binary | xxd -p)
           ENCRYPTED_TOKEN=$(echo -n "$API_TOKEN" | openssl dgst -sha256 -hmac "$WEBHOOK_SECRET" | cut -d " " -f2)
           
           echo "SIGNATURE=$SIGNATURE" >> $GITHUB_ENV