Git SSH support (such as for private gitlab instances)

### Expected Behavior

When using a GIT connection to establish a connection to a private gitlab instance over ssh:

be able to entire git location such as: git@gitlab.privategitlab.blah

And then default to using the $HOME/.ssh/config for authentication (like most other tooling works, such as vscode).

this was previously raised by https://github.com/Kong/insomnia/discussions/5201 but after testing Insomnia 2023.5.6, still an issue.

### Actual Behavior

no option for ssh, and instead a popup says 'enter a url'

### Reproduction Steps

_No response_

### Is there an existing issue for this?

- [X] I have searched the [issue tracker](https://www.github.com/Kong/insomnia/issues) for this problem.

### Additional Information

_No response_

### Insomnia Version

2023.5.6

### What operating system are you using?

macOS

### Operating System Version

13.5.1

### Installation method

download from insomnia

### Last Known Working Insomnia version

_No response_

No implementation files, tests, or entry points are named. Trace the Git connection flow and its URL validation, then inspect how authentication could use the user's $HOME/.ssh/config; done means a private GitLab SSH location is accepted and authentication works without the URL popup.

Written by the indexing model from the issue text.