get back to our desired test state

Author: alex

.github/workflows/ci.yml

@@ -375,11 +375,6 @@ jobs:
           cache: pip
           cache-dependency-path: ci-constraints-requirements.txt
         timeout-minutes: 3
-      - name: Setup rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b
-        with:
-          toolchain: stable
-        if: matrix.WINDOWS.ARCH == 'arm64'
       - run: rustup component add llvm-tools-preview
       - name: Cache rust and pip
         uses: ./.github/actions/cache