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

.github/workflows/tests.yml

@@ -40,10 +40,7 @@ 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
@@ -73,12 +70,10 @@ jobs:
         id: nightly
         run: echo "version=$(cat .github/nightly-version)" >> $GITHUB_OUTPUT
 
-      # Doesn't grab the cache as it's not needed
       - name: Install rustfmt
-        uses: actions-rs/toolchain@v1
+        uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ steps.nightly.outputs.version }}
-          profile: minimal
           components: rustfmt
 
       - name: Run rustfmt