workflow recurses submodule

Author: Bengt Lofgren

.github/workflows/solana.yml

@@ -33,6 +33,11 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ env.RUSTC_VERSION }}
+      - name: Git Submodule Update
+        run: |
+          git pull --recurse-submodules
+          git submodule update --remote --recursive
+        working-directory: ./solana
       - name: make cargo-test-all
         run: make cargo-test-all
         working-directory: ./solana