Replace unmaintained actions-rs/toolchain by dtolnay/rust-toolchain (#473)

.github/workflows/rust-clippy.yml

@@ -29,12 +29,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
+        uses: dtolnay/rust-toolchain@stable
         with:
-          profile: minimal
-          toolchain: stable
           components: clippy
-          override: true
 
       - name: Install required cargo
         run: cargo install clippy-sarif sarif-fmt