ci: install cargo risczero

Author: MarcosNicolau

.github/workflows/build-and-test-rust.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Set up Rust
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: nightly
+          toolchain: stable
           components: rustfmt, clippy
           override: true
 
@@ -38,7 +38,7 @@ jobs:
          /home/runner/.risc0/bin/rzup install
          /home/runner/.risc0/bin/rzup install cargo-risczero 2.0.1
          /home/runner/.risc0/bin/rzup default cargo-risczero 2.0.1
-         rustup target add riscv32im-risc0-zkvm-elf
+         cargo risczero install
 
       - name: Cache Rust dependencies
         uses: actions/cache@v3
@@ -105,7 +105,7 @@ jobs:
          /home/runner/.risc0/bin/rzup install
          /home/runner/.risc0/bin/rzup install cargo-risczero 2.0.1
          /home/runner/.risc0/bin/rzup default cargo-risczero 2.0.1
-         rustup target add riscv32im-risc0-zkvm-elf
+         cargo risczero install
 
       - name: Cache Rust dependencies
         uses: actions/cache@v3