Suggest cargo install url using --git

### Problem

Currently, someone may try `cargo install https://github.com/light4/cargo-info`, then I see.
```
    Updating crates.io index
error: could not find `https://github.com/light4/cargo-info` in registry `crates-io` with version `*`
```

### Proposed Solution

It would be nice to see a suggestion to ask the user to run the same command with `--git`.

### Notes

_No response_