Change from command to action for rust

.github/workflows/buildnup.yml

@@ -46,12 +46,13 @@ jobs:
         DEBIAN_FRONTEND: noninteractive
 
     steps:
-    - name: Install Deps & Rust
+    - name: Install Deps
       run: |
         apt update
         apt install -y libgtk-4-1 libgtk-4-dev libadwaita-1-0 libadwaita-1-dev git curl openssl libssl-dev
-        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --default-toolchain stable -y
-        
+      
+    - uses: dtolnay/rust-toolchain@stable
+      
     - name: Checkout
       uses: actions/checkout@v3
       with: