Chore: CI: Windows: Skip installing Rust (#12502)

.github/workflows/shared/setup-build-environment/action.yml

@@ -49,6 +49,7 @@ runs:
 
     - uses: olegtarasov/get-tag@v2.1.4
     - uses: dtolnay/rust-toolchain@stable
+      if: ${{ runner.os != 'Windows' }}
     - uses: actions/setup-node@v4
       with:
         node-version: '18.18.0'

.github/workflows/ui-tests.yml

@@ -16,6 +16,11 @@ jobs:
         uses: ./.github/workflows/shared/setup-build-environment
       - name: Build
         run: yarn install
+        env:
+          # The onenote-converter package uses Rust, which isn't installed on all CI
+          # runners. Since the onenote-converter doesn't have UI tests, it can be excluded
+          # from build:
+          SKIP_ONENOTE_CONVERTER_BUILD: 1
       - name: Run UI tests
         shell: bash
         run: |