chore(coding_guidelines): match the example to the actual autoware_gnss_poser

[TaikiYamada4]

Description

In the coding guidelines, autoware_gnss_poser is used as an example.

However, there are some lines that mismatch to the actual autoware_gnss_poser, so I fixed them in this PR.

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[SakodaShintaro]

One of CI checks failed. But I think it is not related to this PR.

  ERROR: 1 dead links found in docs/how-to-guides/integrating-autoware/launch-autoware/index.md !
  [✖] https://autowarefoundation.github.io/autoware.universe/main/perception/traffic_light_fine_detector/ → Status: 404

I will continue to review this PR.

[SakodaShintaro]

Looks Good To Me