Remove jupyterlab from environment.yml

[jenson-chang]

For the environment.yml file, I don't think we need to add Jupyterlab as a dependency since we are already using Jupyterlab in our base Docker image.

name: academic-success-predictor
channels:
  - conda-forge
dependencies:
  - python=3.11
  - altair=5.4.1
  - jupyterlab=4.2.5
  - pandas=2.2.3
  - scikit-learn=1.5.2
  - pandera=0.20.4