fix(build): Allow m1 macs to build binary-codec (#2109)

Switch from `run-script-os` to `copyfiles`. Using `copyfiles` is a more
ideal way to copy files in an os agnostic way.

Fixes #2092.

package.json

@@ -31,6 +31,7 @@
     "assert": "^2.0.0",
     "buffer": "^6.0.2",
     "chai": "^4.3.4",
+    "copyfiles": "^2.4.1",
     "crypto-browserify": "^3.12.0",
     "ejs": "^3.0.1",
     "eslint": "^7.5.0",
@@ -54,7 +55,6 @@
     "prettier": "^2.3.2",
     "process": "^0.11.10",
     "puppeteer": "^13.7.0",
-    "run-script-os": "^1.1.6",
     "source-map-loader": "^3.0.1",
     "source-map-support": "^0.5.16",
     "stream-browserify": "^3.0.0",