chore(lazer): add locked to anchor install in CI (#2502)

.github/workflows/ci-lazer-solana-contract.yml

@@ -43,6 +43,8 @@ jobs:
       - name: Create Solana key
         run: solana-keygen new --no-bip39-passphrase
       - name: Install Anchor
-        run: RUSTFLAGS= cargo install --git https://github.com/coral-xyz/anchor --tag v0.30.1 anchor-cli
+        run: |
+          rustup install 1.79.0
+          RUSTFLAGS= cargo +1.79.0 install --git https://github.com/coral-xyz/anchor --tag v0.30.1 --locked anchor-cli
       - name: Run anchor tests
         run: pnpm run test:anchor