ci: add Windows build to CI test matrix (#25)

Add windows-latest to the test matrix alongside ubuntu-latest and macos-latest
to ensure the SDK builds and tests pass on Windows.

Co-authored-by: Cursor Agent <cursoragent@cursor.com>

Author: gregnazario

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
         rust: [stable]
     steps:
       - uses: actions/checkout@v6