fix: use correct GitHub Action for Rust toolchain setup

Replace dtolnay/rust-action with actions-rust-lang/setup-rust-toolchain@v1
which is the correct and maintained action for setting up Rust in CI.

Author: vinitkumar

.github/workflows/rust-ci.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-action@stable
+        uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: rustfmt, clippy
 
@@ -54,7 +54,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Install Rust
-        uses: dtolnay/rust-action@stable
+        uses: actions-rust-lang/setup-rust-toolchain@v1
 
       - name: Install maturin
         run: pip install maturin
@@ -96,7 +96,7 @@ jobs:
           python-version: '3.12'
 
       - name: Install Rust
-        uses: dtolnay/rust-action@stable
+        uses: actions-rust-lang/setup-rust-toolchain@v1
 
       - name: Install maturin
         run: pip install maturin