Fixed wrong identation

    - echo "Starting stage: deploy_mock_nodes"

    - for port in 11111 22222 33333; do

        if lsof -i:$port >/dev/null 2>&1; then

          echo "Freeing up port $port...";

          fuser -k $port/tcp;

          echo "Freeing up port $port..."

          fuser -k $port/tcp

        fi

      done

    - MOCK_NODES_DIR="$PWD/src/tests/tools/mock_qkd_nodes"

    - if [ -d "$MOCK_NODES_DIR" ]; then

        cd "$MOCK_NODES_DIR" || exit;

        ./start.sh &;

        MOCK_NODES_PID=$!;

    - |

      if [ -d "$MOCK_NODES_DIR" ]; then

        cd "$MOCK_NODES_DIR" || exit

        ./start.sh &

        MOCK_NODES_PID=$!

      else

        echo "Error: Mock QKD nodes directory '$MOCK_NODES_DIR' not found.";

        exit 1;

        echo "Error: Mock QKD nodes directory '$MOCK_NODES_DIR' not found."

        exit 1

      fi

    - echo "Waiting for mock nodes to be up..."

    - RETRY_COUNT=0

    - MAX_RETRIES=15

    - while [ $RETRY_COUNT -lt $MAX_RETRIES ]; do

    - |

      while [ $RETRY_COUNT -lt $MAX_RETRIES ]; do

        if curl -s http://127.0.0.1:11111 > /dev/null && \

           curl -s http://127.0.0.1:22222 > /dev/null && \

           curl -s http://127.0.0.1:33333 > /dev/null; then

            echo "Mock nodes are up!";

            break;

            echo "Mock nodes are up!"

            break

        else

            echo "Mock nodes not ready, retrying in 5 seconds...";

            RETRY_COUNT=$((RETRY_COUNT + 1));

            sleep 5;

            echo "Mock nodes not ready, retrying in 5 seconds..."

            RETRY_COUNT=$((RETRY_COUNT + 1))

            sleep 5

        fi

      done

    - if [ $RETRY_COUNT -ge $MAX_RETRIES ]; then

        echo "Error: Mock nodes failed to start after multiple attempts.";

        exit 1;

    - |

      if [ $RETRY_COUNT -ge $MAX_RETRIES ]; then

        echo "Error: Mock nodes failed to start after multiple attempts."

        exit 1

      fi

    # Run the tests