[ci] Add required PATH entries for installing luv

See: aantron/luv#162

Author: tobil4sk

.github/workflows/main.yml

@@ -65,6 +65,8 @@ jobs:
         shell: pwsh
         run: |
           Set-PSDebug -Trace 1
+          # see: https://github.com/aantron/luv/issues/162
+          $env:PATH="${env:CYG_ROOT}\bin;${env:CYG_ROOT}\usr\x86_64-w64-mingw32\bin;${env:PATH}"
           opam install haxe --deps-only
           opam list
 

extra/github-actions/install-ocaml-libs-windows.yml

@@ -2,5 +2,7 @@
   shell: pwsh
   run: |
     Set-PSDebug -Trace 1
+    # see: https://github.com/aantron/luv/issues/162
+    $env:PATH="${env:CYG_ROOT}\bin;${env:CYG_ROOT}\usr\x86_64-w64-mingw32\bin;${env:PATH}"
     opam install haxe --deps-only
     opam list