refactor: remove explicit rust-toolchain install, rely on preinstalled version

Author: nabil-Tounarti

.github/workflows/rust-build.yml

@@ -3,10 +3,6 @@ name: Build, Test and Publish Rust Package
 on:
   workflow_call:
     inputs:
-      rust-version:
-        description: 'Rust version to use'
-        default: 'stable'
-        type: string
       working-directory:
         description: 'The directory to run jobs from'
         default: '.'
@@ -34,11 +30,8 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          toolchain: ${{ inputs.rust-version }}
-          components: clippy, rustfmt, cargo
+      - name: Add clippy and rustfmt
+        run: rustup component add clippy rustfmt
 
       - name: Cache dependencies
         if: ${{ inputs.enable-cache }}

rust-build/README.md

@@ -22,7 +22,6 @@ jobs:
   build-and-test:
     uses: iExecBlockchainComputing/github-actions-workflows/.github/workflows/rust-build.yml@main
     with:
-      rust-version: 'stable'
       working-directory: './my-crate'
       enable-cache: true
       publish-crates-io: false
@@ -34,7 +33,6 @@ jobs:
 
 | Name                | Description                                               | Default  | Required |
 | ------------------- | --------------------------------------------------------- | -------- | -------- |
-| `rust-version`      | Rust version to use                                       | `stable` | No       |
 | `working-directory` | The directory to run jobs from                            | `.`      | No       |
 | `enable-cache`      | Enable caching of dependencies                            | `true`   | No       |
 | `publish-crates-io` | Publish the package to crates.io (only if build succeeds) | `false`  | No       |