Update submodule public_regulated_data_types to latest Sun Aug 11 00:…

…39:06 UTC 2024

    - public_regulated_data_types in PX4/Firmware (54c676e): OpenCyphal/public_regulated_data_types@d0bd651
    - public_regulated_data_types current upstream: OpenCyphal/public_regulated_data_types@f9f6790
    - Changes: OpenCyphal/public_regulated_data_types@d0bd651...f9f6790

    f9f6790 2024-03-19 Pavel Kirienko - Hotfix: reduce the extent of ExecuteCommand.1.3 (#147)
ec27883 2024-03-19 EliotRossRob - Add output field in response (#146)
bb5f918 2024-01-28 Will MacCormack - Add COMMAND_IDENTIFY (#145)
935973b 2023-02-16 Pavel Kirienko - Stabilize uavcan.node.port.List (#138)
16b4f31 2023-02-11 Pavel Kirienko - Update the magnetic quantities in the SI namespace; add luminance; fix the PORT_NAME regexp (#137)
70573cb 2022-05-06 Pavel Kirienko - Automatic extension change & Cyphalization (#127)