Reorder PATH export and directory change for TornadoVM

Fixed the order of PATH export and directory change for building TornadoVM.

Author: mikepapadim

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

@@ -47,16 +47,16 @@ jobs:
 
       - name: Build TornadoVM
         run: |
+          export PATH=$TORNADO_SDK/bin:$PATH
           cd GPULlama3.java/external/tornadovm
           source venv/bin/activate
           make
-          export PATH=$TORNADO_SDK/bin:$PATH
           # Verify TornadoVM
           tornado --devices
 
       - name: Build GPULlama3
         run: |
-          cd GPULlama3.java
+          cd ../../
           make
 
       - name: Run llama-tornado test prompt