Tests fail with cocotb v2.x

[Subhankar-hub]

Problem

The project doesn't work with cocotb v2.x due to API changes:

• cocotb-config --prefix no longer exists (replaced with --lib-dir)
• MODULE env var renamed to COCOTB_TEST_MODULES
• PYGPI_PYTHON_BIN env var is now required
• Clock() parameter units renamed to unit
• LogicArray values can't be used directly in arithmetic operations (need explicit int() conversion)

Error Messages

cocotb-config: error: unrecognized arguments: --prefix
libcocotbvpi_icarus: Unable to find a 'libcocotbvpi_icarus.vpi' module on the search path.

PYGPI_PYTHON_BIN variable not set. Can't initialize Python interpreter!

TypeError: unsupported operand type(s) for *: 'LogicArray' and 'LogicArray'

Environment

• cocotb v2.0.1
• Python 3.13
• Icarus Verilog 12.0

Fix

A fix has been submitted in PR #45

[peepo]

Just to confirm that I tried #45, without review, wfm: test_matadd, main had identical output as mentioned.
Many thanks for this fork, please merge, subject to review!