fix: pin dtolnay/rust-toolchain sha

Author: kosiew

.github/workflows/build.yml

@@ -48,7 +48,10 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Setup Rust
-        run: rustup toolchain install nightly --profile minimal --component rustfmt
+        uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
+        with:
+          toolchain: "nightly"
+          components: rustfmt
 
       - name: Cache Cargo
         uses: Swatinem/rust-cache@v2
@@ -149,9 +152,7 @@ jobs:
           path: .
 
       - name: Setup Rust
-        run: |
-          rustup toolchain install stable --profile minimal
-          rustup default stable
+        uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
 
       - name: Cache Cargo
         uses: Swatinem/rust-cache@v2
@@ -230,9 +231,7 @@ jobs:
           path: .
 
       - name: Setup Rust
-        run: |
-          rustup toolchain install stable --profile minimal
-          rustup default stable
+        uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
 
       - name: Cache Cargo
         uses: Swatinem/rust-cache@v2
@@ -287,10 +286,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
 
-      - name: Setup Rust
-        run: |
-          rustup toolchain install stable --profile minimal
-          rustup default stable
+      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
 
       - run: rm LICENSE.txt
       - name: Download LICENSE.txt
@@ -372,10 +368,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
 
-      - name: Setup Rust
-        run: |
-          rustup toolchain install stable --profile minimal
-          rustup default stable
+      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
 
       - run: rm LICENSE.txt
       - name: Download LICENSE.txt