Update client to schemas pr-262

[tschaffter]

• Update SDK
• Update client API

Update SDK

The schemas pr-262 adds API key authentication to the data node.

rm -fr docs nlpsandbox test
npx @openapitools/openapi-generator-cli generate -g python -o . --package-name nlpsandbox -i https://nlpsandbox.github.io/nlpsandbox-schemas/_internal/nlpsandbox/pr-262/openapi.json

Note: I noticed that the openapi generator generates the folder test and docs with the above command. Therefore I removed these folders manually before running openapi generator. We may want to do the same in the GH workflow that update the code base. This workflow currently only deleted the folder nlpsandbox.

Update client API

@thomasyu888 Can you please take it from there to update the client API? You will need a local instance of the data node from this PR/branch to test the client. The README of the data node should allow you to do so easily once you have checked out the branch. You can start by testing a DELETE endpoint, which does not requires you to seed the data node.

[tschaffter]

I created this branch from the old default branch, develop. Will recreate from main.