chore: green up main CI (#267)

We don't currently work on windows.
Also update SHA of the reusable workflow to upstream HEAD rather than my
PR branch

---

### Type of change

- Chore (any other change that doesn't affect source or test files, such
as configuration)

### Test plan

- Covered by existing test cases

.github/workflows/ci.yaml

@@ -18,8 +18,9 @@ concurrency:
 
 jobs:
   test:
-    uses: bazel-contrib/.github/.github/workflows/bazel.yaml@e76b9e5a1d91256e06b097c4470a22263969600b
+    uses: bazel-contrib/.github/.github/workflows/bazel.yaml@ca6324c506371e708095b42e24d6f34030753de6
     with:
       folders: '[".", "e2e/smoke"]'
+      # TODO: Build Windows tools and add to toolchain
       # TODO(alex): switch the root folder to bzlmod
-      exclude: '[{"folder": ".", "bazelversion": "6.4.0"}, {"folder": ".", "bzlmodEnabled": true}]'
+      exclude: '[{"os": "windows-latest"}, {"folder": ".", "bazelversion": "6.4.0"}, {"folder": ".", "bzlmodEnabled": true}]'