(Experimental) Add UnsafeAllowSeperateMaxTimeMSWithCSOT

[prestonvasquez]

Summary

Add an experimental bool to enabled legacy timeout behavior while CSOT is enabled (client.Timeout. >=0). This would make context deadline only applicable to client-side blocking logic and specify MaxTime on the as a server-side timeout.

This is only available for findOne and has to be set directly on the FindOneOptions:

opts := options.FindOne()
opts.UnsafeAllowSeperateMaxTimeMS = true 

_ = coll.FindOne(context.TODO(), bson.D{}, opts)

Background & Motivation

[mongodb-drivers-pr-bot]

API Change Report

./mongo/options

compatible changes

FindOneOptions.UnsafeAllowSeperateMaxTimeMS: added

./x/mongo/driver

compatible changes

Operation.UnsafeAllowSeperateMaxTimeMS: added

./x/mongo/driver/operation

compatible changes

(*Find).UnsafeAllowSeperateMaxTimeMS: added