MongoDB Client Metrics Success Label Reported as False

[gkech]

Is your feature request related to a problem? Please describe

The MongoDB Client that was introduced recently (PR: #486) is producing metrics that when cmds are successful, they are reported as success: false which is not accurate. The expected behaviour should be a success: true. An alternative could be errored: false.

Describe the solution

Switch the label boolean from errored to success.