fix: rearrange steps again

backend/playout/Dockerfile

@@ -18,10 +18,10 @@ RUN apk add --no-cache \
     bash
 # Set working directory for playout
 WORKDIR /app
-# Copy demo data for out-of-the-box playout
-COPY demodata/ /app/
 # Copy the playout start script and the built playlist manager binary
 COPY start-playout.sh /app/
+# Copy demo data for out-of-the-box playout
+COPY demodata/ /app/
 # Copy the built playlist manager binary from the builder stage
 COPY --from=builder /playlist-manager /app/playlist-manager
 # Create directories for playlist, media, and HLS output