address ambiguous auto variable. (backport #2481)

[mergify[bot]]

address https://github.com/ros2/rclcpp/issues/1963 and https://github.com/dusty-nv/jetson-containers/issues/336

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This is an automatic backport of pull request #2481 done by Mergify.

[fujitatomoya]

CI:

• Linux
• Linux-aarch64
• Windows