feat: implement Load Balancer

[justinmchase]

Using a non-serverless cluster it works just fine.

Example connection string:

mongodb+srv://admin:<password>@serverlessinstance0.57azg.mongodb.net/example?authMechanism=SCRAM-SHA-1

Error:

error: Uncaught (in promise) Error: MongoError: "Connection failed: MongoError: {"ok":0,"errmsg":"The server is being accessed through a load balancer, but this driver does not have load balancing enabled","code":354,"codeName":"LoadBalancerSupportMismatch"}"
throw new MongoDriverError(Connection failed: ${e.message || e});
^
at MongoClient.connect (https://deno.land/x/mongo@v0.29.1/src/client.ts:48:13)
at async MongoService.init (file:///home/justin/code/example/src/services/mongo.service.ts:20:15)
at async initServices (file:///home/justin/code/example/src/services/mod.ts:17:3)
at async file:///home/justin/code/example/index.ts:9:18

[erfanium]

Load Balancer is not implemented yet