Adding toposort as kedro-viz dependency

[noklam]

Description

Is your feature request related to a problem? A clear and concise description of what the problem is: "I'm always frustrated when ..."
When I install Kedro-viz with latest kedro, I get an immediate error.

[04/08/24 11:31:36] WARNING Failed to load kedro_viz.launchers.cli commands from utils.py:378
EntryPoint(name='kedro-viz',
value='kedro_viz.launchers.cli:viz_cli',
group='kedro.global_commands'). Full exception: No module named
'toposort'

kedro-viz/package/kedro_viz/services/layers.py

Line 6 in 2b0a066

from toposort import CircularDependencyError, toposort_flatten

Context

Why is this change important to you? How would you use it? How can it benefit other users?
This is a bug because the dependency is not mentioned.

Possible Implementation

(Optional) Suggest an idea for implementing the addition or change.
temporary fix: add toposort in kedro viz dependency.

Possible Alternatives

(Optional) Describe any alternative solutions or features you've considered.
Drop dependency completely as kedro-org/kedro#3728 did

Checklist

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[rashidakanchwala]

Closing this as toposort has already been added as a viz dependency and there exists a ticket to migrate to graphlib #1820