Doc: Add passing args to Animation guide #27621

Documentation Link

https://matplotlib.org/devdocs/users/explain/animations/animations.html#animations

Problem

Superceded by #27687

Based on #27620, this is a general enough usage case that it'd be worth adding a section.

Suggested improvement

Add a subsection to the FuncAnimation section and use that section to explain how to pass in arguments and show a small example.

See func parameter for details: https://matplotlib.org/devdocs/api/_as_gen/matplotlib.animation.FuncAnimation.html#matplotlib.animation.FuncAnimation