fix(fs): expose nftw declarations on posix

fix(build): make msvc windows binaries self-contained

fix(test): use portable windows dll fixture

fix(ci): make osx release artifacts unique per runner

fix: avoid segfault in absence of any argument

fix: simplify build of cjit-ar

build cjit-ar by default on all platforms

fix: add gnu make to windows installer

build it native from the original gnu package source

fix: winpkg manifest automatic submission

fix: innosetup installer fixes

trying to follow up recommendations in https://github.com/microsoft/winget-pkgs/pull/242699/files