Define `lab` task for Poe the Poet

[redeboer]

[tool.poe.tasks.lab]
args = [{name = "paths", default = "", positional = true}]
cmd = "jupyter lab ${paths}"
help = "Run Jupyter Lab"

Implementation PRs

• FEAT: implement general Chew–Mandelstam function ampform#480
• BREAK: drop support for Python 3.9 ampform-dpd#181
• https://github.com/ComPWA/benchmarks/pull/31
• DX: upgrade environment to Python 3.13 compwa.github.io#308
• DX: upgrade environment to Python 3.13 demo#45
• DX: upgrade environment to Python 3.13 gluex-amplitude#46
• DX: upgrade environment to Python 3.13 gluex-nstar#113
• DX: upgrade environment to Python 3.13 jax-mini-benchmark#16
• https://github.com/ComPWA/K-matrix-research/pull/105
• https://github.com/ComPWA/Nstar-docs/pull/34
• https://github.com/ComPWA/PWA-JPsi2pbarSigmaKS/pull/256
• DX: upgrade environment to Python 3.13 PWA-pages#235
• DX: install jupyterlab-quickopen qrules#325
• DX: upgrade environment to Python 3.13 report#33
• DX: upgrade environment to Python 3.13 strong2020-salamanca#48
• DX: install jupyterlab-quickopen tensorwaves#553
• DX: upgrade environment to Python 3.13 RUB-EP1/pawian-tools#61