It is recommended to test your system before installing the HailoRT PCIe driver. PCIe capabilities of all devices are negotiated at boot without the need of custom drivers. You should be able to see the Hailo-8 when running lspci command
04:00.0 Co-processor: Hailo Technologies Ltd. Hailo-8 AI Processor (rev 01)
or
04:00.0 Co-processor: Device 1e60:2864 (rev 01)
If that does not work, check your hardware. Did you install the PCIe cable correctly and the GPIO header?
Did you install the 64-bit version of the Raspberry Pi OS?