gitPull gives flaky tests: Failed to connect to github.com port 443: Timed out
https://ci.appveyor.com/project/genotrance/nimterop/builds/21991298/job/690x3t07j7qogi92

fatal: unable to access 'https://github.com/jarikomppa/soloud/': Failed to connect to github.com port 443: Timed out


```
Hint: paths [Processing]
Resetting C:\Users\appveyor\.nimble\pkgs\nimterop-0.1.0\build\inc\treesitter
Resetting C:\Users\appveyor\.nimble\pkgs\nimterop-0.1.0\build\inc\utf8proc
Hint: types [Processing]
Setting up Git repo: https://github.com/jarikomppa/soloud
Pulling repository
stack trace: (most recent call last)
tsoloud.nim(9)           tsoloud
..\..\..\Users\appveyor\.nimble\pkgs\nimterop-0.1.0\nimterop\git.nim(102) gitPull
..\..\..\Users\appveyor\.nimble\pkgs\nimterop-0.1.0\nimterop\git.nim(23) execAction
..\..\..\..\c:\binaries\nim-0.19.2\lib\system.nim(3877) failedAssertImpl
..\..\..\..\c:\binaries\nim-0.19.2\lib\system.nim(3870) raiseAssert
..\..\..\..\c:\binaries\nim-0.19.2\lib\system.nim(2916) sysFatal
c:\binaries\nim-0.19.2\lib\system.nim(2916, 7) Error: unhandled exception: C:\Users\appveyor\.nimble\pkgs\nimterop-0.1.0\nimterop\git.nim(23, 14) `false` Command failed: 1
ccmd: cmd /c cd C:\Users\appveyor\.nimble\pkgs\nimterop-0.1.0\build\soloud && git pull --depth=1 origin master
result:
fatal: unable to access 'https://github.com/jarikomppa/soloud/': Failed to connect to github.com port 443: Timed out
stack trace: (most recent call last)
C:\projects\nimterop\nimterop.nimble(49) testTask
C:\projects\nimterop\nimterop.nimble(44) testAll
C:\projects\nimterop\nimterop.nimble(24) tsoloud
C:\projects\nimterop\nimterop.nimble(21) execCmd
c:\binaries\nim-0.19.2\lib\system\nimscript.nim(237) exec
c:\binaries\nim-0.19.2\lib\system\nimscript.nim(237, 7) Error: unhandled exception: FAILED: nim c -r tests/tsoloud.nim
Command exited with code 1
7z a -r buildlogs-win-pkgs.zip %USERPROFILE%\.nimble\pkgs
7-Zip 18.05 (x64) : Copyright (c) 1999-2018 Igor Pavlov : 2018-04-30

```

note: there may be something more clever to do than issuing `wait + retry at fixed intervals`
maybe smthg like github tokens https://github.com/settings/tokens
