Add Prisma Client Python

https://github.com/RobertCraigie/prisma-client-py

These benchmarks would probably be very similar to the existing Prisma benchmarks but it would be helpful for me to see how it compares to other Python ORMs.

I'd be happy to implement this myself, just wanted to open an issue beforehand :)

Start by locating the existing Prisma benchmarks in the repository and compare their structure with the Prisma Client Python project linked in the issue. Run the current benchmark suite to understand its expected output, then add the corresponding Python ORM benchmark and verify that its results can be compared with the other ORM benchmarks.

Written by the indexing model from the issue text.