Move to dtolnay/toolchain (#211)

* Move to dtolnay/toolchain

* Correct dtolnay/toolchain to rust-roolchain

* Pass toolchain by argument instead of revision

Introduces malleability by referring to HEAD of dtolnay, yet GHA errored on the
prior syntax.

.github/workflows/daily-deny.yml

@@ -18,10 +18,7 @@ jobs:
           key: rust-advisory-db
 
       - name: Install cargo
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          profile: minimal
+        uses: dtolnay/rust-toolchain@stable
 
       - name: Install cargo deny
         run: cargo install --locked cargo-deny