ci: drop Windows in ci workflow

current ci run fails with useless error messages on Windows platform
https://github.com/swiing/BitArray/actions/runs/6057302530/job/16438303643

This is clearly not linked to the library itself, but to the environment setup.

Having too much pain to make ci run properly on Windows.
Nevermind, drop it for now.

Author: swiing

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         node-version: [16.x, 18.x, 20.x]
-        os: [ubuntu-latest, windows-latest, macOS-latest]
+        os: [ubuntu-latest, macOS-latest] # , windows-latest
 
     runs-on: ${{ matrix.os }}