Python 3.14 build failing on macOS

This is a bit of a tortured chain of dependencies that are not really python-snappy's problem but can be fixed by choosing a newer dependency.

python-snappy has a dependency on cramjam but cramjam v2.10.0 fails to build on macOS v26.2 with python v3.14 because of pyo3 python version limitations. The underlying error is:

```
error: the configured Python interpreter version (3.14) is newer than PyO3's maximum supported version (3.13)
= help: please check if an updated version of PyO3 is available. Current version: 0.24.1
= help: set PYO3_USE_ABI3_FORWARD_COMPATIBILITY=1 to suppress this check and build anyway using the stable ABI
```

Using `cramjam>=2.11.0` fixes this and appears to continue to support a wide range of Python versions so this is possibly harmless.