* test: add unit test for produced handler

* actually failing test in windows

* fix(gatsby-adapter-netlify): produce working function handlers on windows

* fix(gatsby): functions compilation on windows

* tmp: prepare cross-platform binaries for SSR/DSG

* fix: lint

* feat: add a way to configure functions executing platform/arch and add early check in DSG/SSR

* refactor: move some utility functions around, cleanup standalone-regenrate, restore engine validation, add structured error and better error messages

* chore: add jsdocs description for functionsPlatform and functionsArch optional config values passed by adapter

* chore: make sure fs wrapper is first

* fix: actually use values reported by adapter

* test: try to setup windows adapters smoke test

* test: typo

* test: maybe cd into dirs?

* test: no powershell fro smoke test

* chore: single quote to double

* chore: install node-gyp requirements

* chore: install deps in win smoke

* ?

* newer node needed for ntl-cli

* run ntl through yarn

* Revert "run ntl through yarn"

This reverts commit 8c55e40.

* install ntl-cli in circleci pipeline

* test: adjust lmdb regeneration test to changed internal-packages location

* test: run windows deploy/smoke test after unit tests passed

* chore: use path.posix to load engines in serve command

* chore: use default value when destructuring instead of nullish coalescing later

(cherry picked from commit c91ed28)