use vars for safe values

Author: essential-randomness

.github/workflows/deploy-preview.yaml

@@ -57,9 +57,9 @@ jobs:
                   SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
                   ARGS: "-rlgoDzvc -i --delete"
                   SOURCE: "dist/"
-                  REMOTE_HOST: ${{ secrets.REMOTE_HOST }}
-                  REMOTE_USER: ${{ secrets.REMOTE_USER }}
-                  TARGET: ${{ secrets.REMOTE_TARGET }}${{ github.event_name == 'pull_request' && github.event.pull_request.number ||  github.event_name == 'push' && 'main' || github.event.inputs.destination}}
+                  REMOTE_HOST: ${{ vars.REMOTE_HOST }}
+                  REMOTE_USER: ${{ vars.REMOTE_USER }}
+                  TARGET: ${{ vars.REMOTE_TARGET }}${{ github.event_name == 'pull_request' && github.event.pull_request.number ||  github.event_name == 'push' && 'main' || github.event.inputs.destination}}
             - name: update PR
               if: ${{ github.event_name == 'pull_request' }}
               uses: thollander/actions-comment-pull-request@v2