Support wrapt 2.x

[rafalh]

Currently there is an upper bound on wrapt:

wrapt = "^1.14"

This allows wrapt >= 1.14 <2.0
There is already wrapt >= 2.0 since October 2025. I have trouble to install langfuse in GCP Cloud Compoer environment, because it comes with incompatible version of wrapt (2.0.1), so I am wondering if it would be possible to allow the new version.

I tried myself to bump it but it seems there is an indirect dependency on wrapt through opentelemetry and it has the same upper bound. See: open-telemetry/opentelemetry-python-contrib#3903
It is probably a blocker for this issue.