fix: support environment without std::input to stop recording

[iwatake2222]

Description

• ros2 caret record --immediate option had been introduced for recording without keyboard input. In this case, ctrl-c is expected to stop recording.
• However, input operation causes exception on environment without standard input, which causes the following errors.

Traceback (most recent call last):
  File "/opt/ros/humble/bin/ros2", line 33, in <module>
    sys.exit(load_entry_point('ros2cli==0.18.7', 'console_scripts', 'ros2')())
  File "/opt/ros/humble/lib/python3.10/site-packages/ros2cli/cli.py", line 89, in main
    rc = extension.main(parser=parser, args=args)
  File "/home/takeshiiwanari/ros2_caret_ws/build/ros2caret/ros2caret/command/caret.py", line 32, in main
    return extension.main(args=args)
  File "/home/takeshiiwanari/ros2_caret_ws/build/ros2caret/ros2caret/verb/record.py", line 240, in main
    execute_and_handle_sigint(_run, _fini)
  File "/home/takeshiiwanari/ros2_caret_ws/build/tracetools_trace/tracetools_trace/tools/signals.py", line 114, in execute_and_handle_sigint
    run_function()
  File "/home/takeshiiwanari/ros2_caret_ws/build/ros2caret/ros2caret/verb/record.py", line 222, in _run
    input('press enter to stop...')
EOFError: EOF when reading a line

Related links

TIER IV Internal link

Notes for reviewers

Command to test

ros2 caret record --immediate < /dev/null

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[ymski]

LGTM

[xygyo77]

LGTM