fix(NODE-6602): only wrap errors from SOCKS in network errors

[nbbeeken]

Description

What is changing?

• SOCKS errors should be wrapped in our network error type
• Improve error messages for socket errors

Is there new documentation needed for these changes?

No

What is the motivation for this change?

While fixing NODE-6552 the error message changes helped with debugging and caught the error convert bug in a driveby

Release Highlight

SOCKS5: MongoNetworkError wrap fix

If the driver encounters an error while connecting to a socks5 proxy, the driver wraps the socks5 error in a MongoNetworkError. In some circumstances, this resulted in the driver wrapping MongoNetworkErrors inside MongoNetworkErrors.

The driver no longer double wraps errors in MongoNetworkErrors.

Double check the following

• Ran npm run check:lint script
• Self-review completed using the steps outlined here
• PR title follows the correct format: type(NODE-xxxx)[!]: description
  • Example: feat(NODE-1234)!: rewriting everything in coffeescript
• Changes are covered by tests
• New TODOs have a related JIRA ticket