fix(autoware_mpc_lateral_controller): parameter for the physical constraint at zero speed

[HansOersted]

Description

This is the parameter for https://github.com/autowarefoundation/autoware.universe/pull/7581

Note that some parameters from autoware and inner version are different. The purpose of this PR is to add physical_steer_rate_lim: 5.0 # physical steering angle rate limit [rad/s]

Tests performed

Not applicable.

Effects on system behavior

Not applicable.

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[HansOersted]

The parameters from autoware and inner version are different. The purpose of this PR is to add physical_steer_rate_lim: 5.0 # physical steering angle rate limit [rad/s]