use solana-rpc-client-api crate (#7)

* use solana-rpc-client-api crate
* update CI and docker image to always pull latest libdrift

Author: jordy25519

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

@@ -22,16 +22,20 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install OS dependencies
-        run: apt-get update && apt-get install -y git libssl-dev libsasl2-dev cmake
+        run: apt-get update && apt-get install -y git libssl-dev libsasl2-dev cmake jq
 
       - name: Install rustfmt and toolchain
         run: rustup component add rustfmt
 
       - name: Install libdrift_ffi
-        run: curl -L https://github.com/drift-labs/drift-ffi-sys/releases/download/v2.109.0/libdrift_ffi_sys.so -o libdrift_ffi_sys.so && cp libdrift_ffi_sys.so $CARGO_DRIFT_FFI_PATH
+        run: |
+          SO_URL=$(curl -s https://api.github.com/repos/drift-labs/drift-ffi-sys/releases/latest | jq -r '.assets[] | select(.name=="libdrift_ffi_sys.so") | .browser_download_url')
+          echo "downloading libdrift: $SO_URL"
+          curl -L -o libdrift_ffi_sys.so "$SO_URL"
+          cp libdrift_ffi_sys.so $CARGO_DRIFT_FFI_PATH
 
       - name: Cache cargo index
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}