SSL error on Windows
It looks like `choosenim` doesn't come with the certificates it needs.

```
  Verifying dependencies for tridactyl_native@
    Reading official package list
    Prompt: No local packages.json found, download it from internet? -> [forced yes]
Downloading Official package list
     Trying https://github.com/nim-lang/packages/raw/master/packages.json
   Warning: Could not download: No SSL/TLS CA certificates found.
     Trying https://irclogs.nim-lang.org/packages.json
     Trying https://nim-lang.org/nimble/packages.json
     Error: Refresh failed
        ... Could not download: No SSL/TLS CA certificates found.
Error: Process completed with exit code 1.
```

https://github.com/tridactyl/native_messenger/runs/1998216729?check_suite_focus=true

> It was a pretty easy fix:

> https://github.com/tridactyl/native_messenger/pull/41/files

https://github.com/jiro4989/setup-nim-action/issues/41

---

And I got this problem too.

```powershell
PS C:\Users\jiro4989\Downloads\choosenim> nimble install rena
    Prompt: No local packages.json found, download it from internet? [y/N]
    Answer: y
Downloading Official package list
       Tip: 5 messages have been suppressed, use --verbose to show them.
     Error: Refresh failed
        ... Could not download: No SSL/TLS CA certificates found.
PS C:\Users\jiro4989\Downloads\choosenim>


PS C:\Users\jiro4989\Downloads\choosenim> nim -v
Nim Compiler Version 1.4.4 [Windows: amd64]
Compiled at 2021-02-23
Copyright (c) 2006-2020 by Andreas Rumpf

active boot switches: -d:release



PS C:\Users\jiro4989\Downloads\choosenim> nimble -v
nimble v0.13.1 compiled at 2021-02-23 00:57:46
git hash: couldn't determine git hash
PS C:\Users\jiro4989\Downloads\choosenim>
```

I installed nim with `choosenim-0.7.4_windows_amd64.zip` .