Use toolchains.yml in lints.

Author: evgenyzdanovich

.github/actions/toolchains/action.yml

@@ -0,0 +1,25 @@
+# A helper reusable workflow to install all the toolchains.
+
+name: Install toolchains
+description: "Helper to install ZKVM toolchains."
+
+runs:
+  using: "composite"
+  steps:
+    - name: Set up Clang
+      uses: egor-tensin/setup-clang@v1
+      with:
+        version: latest
+        platform: x64
+
+    - name: Install SP1 Toolchain
+      run: |
+        curl -fsSL --proto '=https' --tlsv1.2 https://sp1.succinct.xyz | bash && ~/.sp1/bin/sp1up
+        export PATH=~/.sp1/bin:$PATH
+        cargo prove --version
+
+    - name: Install RISC0 Toolchain
+      run: |
+        curl -fsSL --proto '=https' --tlsv1.2 https://risczero.com/install | bash && ~/.risc0/bin/rzup install
+        export PATH=~/.risc0/bin:$PATH
+        cargo risczero --version

.github/workflows/lint.yml

@@ -18,6 +18,8 @@ jobs:
       - uses: actions/checkout@v4
         with:
           persist-credentials: false
+      - name: Install toolchains
+        uses: .github/actions/toolchains
       - uses: dtolnay/rust-toolchain@clippy
       - uses: Swatinem/rust-cache@v2
         with:
@@ -34,9 +36,11 @@ jobs:
       - uses: actions/checkout@v4
         with:
           persist-credentials: false
-
+      
       - name: Cleanup space
-        uses: ./.github/actions/cleanup # zizmor: ignore[unpinned-uses]
+        uses: .github/actions/cleanup # zizmor: ignore[unpinned-uses]
+      - name: Install toolchains
+        uses: .github/actions/toolchains
 
       - uses: dtolnay/rust-toolchain@nightly
         with: