Lower memory usage in CAS tutorial (#1739)

Summary:
The CAS tutorial has been running into OOMs in the CI. This lowers the memory usage by using fewer samples in the ECI acquisition function.

Pull Request resolved: #1739

Test Plan: https://github.com/dme65/botorch/actions/runs/4421176030/jobs/7751689032

Reviewed By: Balandat

Differential Revision: D44074918

Pulled By: dme65

fbshipit-source-id: 03ed7d40328d72bb90fd0c75f88583e1a25a743d

Author: dme65

scripts/run_tutorials.py

@@ -27,9 +27,6 @@
 RUN_IF_SMOKE_TEST_IGNORE_IF_STANDARD = {  # only used in smoke tests
     "thompson_sampling.ipynb",  # very slow without KeOps + GPU
     "composite_mtbo.ipynb",  # TODO: very slow, figure out if we can make it faster
-    # Causing the tutorials to crash when run without smoke test. Likely OOM.
-    # Fix planned.
-    "constraint_active_search.ipynb",
     # Timing out in standard mode
     "saasbo.ipynb",
     # Timing out in standard mode