Refactor the scripts to work as advertised

- Correct docs generation to always fetch its dependency
- Don't try to close a handle that's already been closed by other methods
- Allow the release script to actually be testable.

scripts/.eslintrc.js

@@ -6,4 +6,7 @@ module.exports = {
     "parserOptions": {
         "ecmaVersion": 2019,
     },
+    "rules": {
+        "no-process-env": "off",
+    },
 };