fix(action): update s3 vars (#5741)

Author: philibea

.github/workflows/illustrations-upload.yml

@@ -46,5 +46,5 @@ jobs:
           aws s3 sync packages/illustrations/src/assets s3://${{ env.BUCKET_NAME }}/illustrations/ --exclude "*" --include "*.webp" --include "*.svg" --acl public-read --cache-control max-age=2592000,public
           aws s3api put-bucket-cors --bucket ${{ env.BUCKET_NAME }} --cors-configuration file://.aws/cors.json
         env:
-          AWS_ACCESS_KEY_ID: ${{ secrets.S3_ACCESS_KEY_ID }}
-          AWS_SECRET_ACCESS_KEY: ${{ secrets.S3_SECRET_KEY }}
+          AWS_ACCESS_KEY_ID: ${{ vars.SCW_ACCESS_KEY }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.SCW_SECRET_KEY }}