Test batch_run examples in CI

[EwoutH]

Add a function to test the batch_run examples, which is also ran in CI.

Follow-up on #2183, part of #2184 and originated from projectmesa/mesa-examples#126.

[github-actions]

Performance benchmarks:

Model	Size	Init time [95% CI]	Run time [95% CI]
Schelling	small	🔵 +0.5% [+0.1%, +0.8%]	🔵 +0.2% [-0.1%, +0.5%]
Schelling	large	🔵 +0.6% [+0.1%, +1.3%]	🔵 +2.4% [+0.3%, +3.9%]
WolfSheep	small	🔵 +0.2% [-1.1%, +1.6%]	🔵 -0.2% [-0.6%, +0.2%]
WolfSheep	large	🔵 +0.3% [-1.2%, +1.7%]	🔵 +0.2% [-2.1%, +2.3%]
BoidFlockers	small	🔵 +0.2% [-0.4%, +0.8%]	🔵 +0.8% [+0.1%, +1.7%]
BoidFlockers	large	🔵 -0.0% [-0.6%, +0.6%]	🔵 +0.0% [-0.8%, +1.0%]

[EwoutH]

Depends on projectmesa/mesa-examples#143.