chore: migrate away from unmaintained rust toolchain installer (#4465)

chore: migrate away from unmaintained rust toolchain installer

- previous toolchain action was archived almost a year ago
https://github.com/actions-rs/toolchain
- new action has 1k+ stars and sensible defaults
https://github.com/dtolnay/rust-toolchain
- uses minimal profile by default
- `stable` toolchain by default

Signed-off-by: pbio <10051819+paulbalaji@users.noreply.github.com>

.github/workflows/agent-release-artifacts.yml

@@ -58,10 +58,8 @@ jobs:
           linker = "aarch64-linux-gnu-gcc"
           EOF
       - name: setup rust
-        uses: actions-rs/toolchain@v1
+        uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: stable
-          profile: minimal
           target: ${{ matrix.TARGET }}
       - name: setup target
         run: rustup target add ${{ matrix.TARGET }}

.github/workflows/rust.yml

@@ -35,10 +35,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          profile: minimal
+      - uses: dtolnay/rust-toolchain@stable
       - name: rust cache
         uses: Swatinem/rust-cache@v2
         with:
@@ -68,10 +65,8 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: stable
-          profile: minimal
           components: rustfmt, clippy
           target: wasm32-unknown-unknown
       - name: rust cache

.github/workflows/test.yml

@@ -187,10 +187,7 @@ jobs:
         uses: foundry-rs/foundry-toolchain@v1
 
       - name: setup rust
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          profile: minimal
+        uses: dtolnay/rust-toolchain@stable
 
       - name: rust cache
         uses: Swatinem/rust-cache@v2