chore: Update GitHub workflows to use Rust nightly instead of PHP 8.1

.github/workflows/run-tests-windows.yml

@@ -14,7 +14,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [windows-latest]
-        php: [8.1]
+        rust: [nightly]
         stability: [prefer-stable]
 
     name: P${{ matrix.php }} - ${{ matrix.stability }} - ${{ matrix.os }}
@@ -23,11 +23,5 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - name: Setup Rust
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: nightly
-          override: true
-
       - name: Build
         run: cargo build --verbose