Update main.yml

Author: lorisleiva

.github/workflows/main.yml

@@ -44,6 +44,11 @@ jobs:
       - name: Git checkout
         uses: actions/checkout@v4
 
+      - name: Install Solana ${{ env.SOLANA_VERSION }}
+        uses: solana-program/actions/install-solana@v1
+        with:
+          version: ${{ env.SOLANA_VERSION }}
+
       - name: Install pnpm
         uses: pnpm/action-setup@v3