Rename dservice to scanner in Dockerfile

Author: dguenther

Dockerfile

@@ -31,7 +31,7 @@ WORKDIR /app
 # Copy the built binaries from the builder stage
 COPY --from=builder /app/build/target/release/server /app/server
 COPY --from=builder /app/build/target/release/chain_loader /app/chain_loader
-COPY --from=builder /app/build/target/release/dservice /app/dservice
+COPY --from=builder /app/build/target/release/scanner /app/scanner
 COPY --from=builder /app/build/target/release/dworker /app/dworker
 COPY --from=builder /app/build/target/release/prover /app/prover