Wrap konfig load from scripts tests to avoid changing CWD (#4067)

* chore: add utility method to get konfig from scripts tests

Local scripts specs should be be caught by the changing current
directory when loading `konfig.coffee` (which loads `cwd.coffee`,
which changes the cwd to `packages/server`). This was throwing
snapshot tests into saving into a wrong folder until I have noticed
this and fixed in
[v8.0.3](https://github.com/bahmutov/snap-shot-core/releases/tag/v8.0.3)

* linting

* add more comments

scripts/binary/upload-unique-binary.coffee

@@ -11,7 +11,7 @@ gulp = require("gulp")
 human = require("human-interval")
 R = require("ramda")
 
-konfig  = require("../../packages/server/lib/konfig")
+konfig = require('../binary/get-config')()
 uploadUtils = require("./util/upload")
 
 # we zip the binary on every platform and upload under same name