Testing - Migration PR actions to VCPKG-based (#587)

Update the default testing to use result of VCPKG.
The 3rd-party are stored in GitHub NuGet storage and reused.
The 3rd-party archive with installed 3rd-party added as an artefact
Updated the actions to work with VCPKG 3rd party

CMakeLists.txt

@@ -776,6 +776,10 @@ endif()
 # the platform specific variables.
 if (BUILD_USE_VCPKG)
   project (OCCT)
+  if (APPLE)
+    # set Apple specific variables
+    occt_set_apple_csf_vars()
+  endif()
 endif()
 
 # copying clang-format file to the root of the project