Bump sympy from 1.13.3 to 1.14.0

Bumps [sympy](https://github.com/sympy/sympy) from 1.13.3 to 1.14.0.
- [Release notes](https://github.com/sympy/sympy/releases)
- [Commits](sympy/sympy@sympy-1.13.3...sympy-1.14.0)

---
updated-dependencies:
- dependency-name: sympy
  dependency-version: 1.14.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

environment.yml

@@ -18,6 +18,6 @@ dependencies:
     # TODO: Check for SymPy 1.14.1+ when available
     # Pinned to 1.13.3 due to bug in 1.14.0 causing OverflowError in solve() 
     # for symbolic differentiation in solow.md (factorint issue with large mpz)
-    - sympy==1.13.3
+    - sympy==1.14.0