Fix: Type of Connection.transaction()

[dwrss]

The documentation and code say it accepts "options" as a second parameter, but the type definition doesn't allow it.

Summary

The documentation lists Connection.prototype.transaction() as accepting an options parameter (and this is indeed the case), but the type definition doesn't allow it.
This is particularly problematic for using this function with causally consistent sessions, given that the default read concern is local, because it prevents setting the readConcern at anything other than the client level.

Examples
The sample from the documentation:

await db.transaction(async function setRank(session) {
  doc.rank = 'Captain';
  await doc.save({ session });
  doc.isNew; // false

  // Throw an error to abort the transaction
  throw new Error('Oops!');
},{ readPreference: 'primary' }).catch(() => {});

will fail to transpile as Typescript, with the error TS2554: Expected 1 arguments, but got 2.

[AbdelrahmanHafez]

Welcome, @dwrss
LGTM, thanks! 👍