Bump gurobipy from 11.0.3 to 12.0.0

Bumps [gurobipy](https://www.gurobi.com) from 11.0.3 to 12.0.0.

---
updated-dependencies:
- dependency-name: gurobipy
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

docs/requirements.txt

@@ -1,4 +1,4 @@
-gurobipy==11.0.3
+gurobipy==12.0.0
 gurobipy-pandas==1.2.0
 ipykernel==6.29.5
 matplotlib==3.9.3