GHDL not detected when in PATH

[sigmuha]

OS: Windows 11
vunit versions tested: 4.7.0, 5.0.0dev7

GHDL is not detected as a simulator even though <INSTALL_DIR>/GHDL/bin is in PATH. It is recognized when VUNIT_GHDL_PATH is valid, but this is not a requirement as per the vunit output:

ERROR - No available simulator detected.
Simulator binary folder must be available in PATH environment variable.
Simulator binary folder can also be set the in VUNIT_<SIMULATOR_NAME>_PATH environment variable.

vu.get_simulator_name() return None.