Add pytest script and CI job to test tutorials

[EwoutH]

No description provided.

[github-actions]

Performance benchmarks:

Model	Size	Init time [95% CI]	Run time [95% CI]
BoltzmannWealth	small	🔵 -1.9% [-3.8%, -0.0%]	🔵 +0.3% [+0.1%, +0.4%]
BoltzmannWealth	large	🔵 +3.9% [-29.7%, +39.7%]	🔵 +1.3% [-0.9%, +3.5%]
Schelling	small	🔵 +0.2% [-0.2%, +0.5%]	🔵 +0.8% [+0.5%, +1.0%]
Schelling	large	🔵 +0.0% [-1.0%, +1.2%]	🔴 +10.1% [+3.5%, +16.4%]
WolfSheep	small	🔵 +0.2% [-1.3%, +1.7%]	🔵 +0.9% [+0.7%, +1.1%]
WolfSheep	large	🔵 +0.8% [-0.2%, +1.8%]	🔵 +4.8% [+2.5%, +6.8%]
BoidFlockers	small	🔵 -2.1% [-2.6%, -1.5%]	🔵 +1.3% [+0.5%, +2.0%]
BoidFlockers	large	🔵 -2.6% [-3.2%, -2.0%]	🔵 +0.7% [+0.2%, +1.1%]

[EwoutH]

Maybe #2276 is enough, let's see.

[EwoutH]

Fun idea, I will leave the branch open for a while, but #2276 is far more elegant than this PR and also solves the problem, using a build we already have set up and use.

So closing in favor of #2276.