fix CI for windows

[sehz]

Regression introduced in: #197.

https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true.

error: failed to run custom build command for `nj-example-function v0.0.0 (D:\a\node-bindgen\node-bindgen\examples\function)`
[587](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:588)
[588](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:589)
Caused by:
[589](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:590)
  process didn't exit successfully: `D:\a\node-bindgen\node-bindgen\examples\target\debug\build\nj-example-function-4b753c1df0bfd246\build-script-build` (exit code: 101)
[590](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:591)
  --- stdout
[591](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:592)
  downloading nodejs: https://nodejs.org/dist/v16.15.1
[592](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:593)
  /win-x64/node.lib to: "C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\node-v16.15.1.lib"
[593](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:594)
[594](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:595)
  --- stderr
[595](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:596)
  thread 'main' panicked at 'Download node.lib file failed: Parse(StatusErr)', D:\a\node-bindgen\node-bindgen\nj-build\src\lib.rs:35:14
[596](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:597)
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
[597](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:598)
warning: build failed, waiting for other jobs to finish...
[598](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:599)
mingw32-make[2]: *** [makefile:4: build] Error 101
[599](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:600)
mingw32-make[2]: Leaving directory 'D:/a/node-bindgen/node-bindgen/examples/function'
[600](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:601)
mingw32-make[1]: *** [makefile:25: test-function] Error 2
[601](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:602)
mingw32-make[1]: Leaving directory 'D:/a/node-bindgen/node-bindgen/examples'
[602](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:603)
mingw32-make: *** [makefile:18: test-examples] Error 2
[603](https://github.com/infinyon/node-bindgen/runs/7245525951?check_suite_focus=true#step:8:604)
Error: Process completed with exit code 1.