requirements: update llvmlite requirement from <0.41 to <0.42

Updates the requirements on [llvmlite](https://github.com/numba/llvmlite) to permit the latest version.
- [Release notes](https://github.com/numba/llvmlite/releases)
- [Commits](numba/llvmlite@v0.1.0...v0.41.0)

---
updated-dependencies:
- dependency-name: llvmlite
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -6,7 +6,7 @@ graph-scheduler>=0.2.0, <1.1.3
 graphviz<0.21.0
 grpcio<1.59.0
 leabra-psyneulink<0.3.3
-llvmlite<0.41
+llvmlite<0.42
 matplotlib<3.7.3
 modeci_mdf<0.5, >=0.3.4; (platform_machine == 'AMD64' or platform_machine == 'x86_64') and platform_python_implementation == 'CPython' and implementation_name == 'cpython'
 networkx<3.2