pip prod(deps): update sympy requirement

Updates the requirements on [sympy](https://github.com/sympy/sympy) to permit the latest version.
- [Release notes](https://github.com/sympy/sympy/releases)
- [Commits](sympy/sympy@sympy-1.12.1...sympy-1.14.0)

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

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

Author: dependabot[bot]

requirements.txt

@@ -1,6 +1,6 @@
 pip>=9.0.1
 numpy>=1.26,<=2.4.3
-sympy>=1.12.1,<1.15
+sympy>=1.14.0,<1.15
 psutil>=5.1.0,<8.0
 py-cpuinfo<10
 cgen>=2020.1,<2026