make_trapezoid() creates gradient event with slew rate bigger than max_slew_rate without warning

[h3lg3]

Describe the bug
Creating a gradient with make_trapezoid(), providing system, area, duration and rise_time creates a gradient with a slew rate bigger than system.max_slew without warning.

To Reproduce

import pypulseq as pp
system = pp.Opts()

# Set max slew to 50 T/m/s
system.max_slew = 50 * system.gamma  # Hz/m/s

grad_spoil = pp.make_trapezoid(channel='z', system=system, area = 800, duration = 1e-3, rise_time = 200e-6)

grad_slew_rate = grad_spoil.amplitude/grad_spoil.rise_time/system.gamma
print(f"Slew rate of gradient: {round(grad_slew_rate)} T/m/s")

# Slew rate of gradient: 117 T/m/s

Expected behavior
If I set max_slew as a system spec I dont want it to be exceeded.

Desktop (please complete the following information):

• OS: [e.g. Win11]
• pypulseq version: [e.g. 1.4.2]

[FrankZijlstra]

Resolved in #214.