archive debug and release builds in gh action

.github/workflows/build.yml

       - name: Build
         working-directory: ${{github.workspace}}/repo
         shell: bash
-        run: make GBDK_HOME=${{github.workspace}}/gbdk GBDK_RELEASE=1 clean all -j $(nproc)
+        run: |
+          make GBDK_HOME=${{github.workspace}}/gbdk clean all -j $(nproc)
+          mv duality.gb duality_debug.gb
+          mv build/duality.map duality_debug.map
+          make GBDK_HOME=${{github.workspace}}/gbdk GBDK_RELEASE=1 clean all -j $(nproc)
+          mv build/duality.map duality.map
 
       - name: Upload a Build Artifact
         uses: actions/upload-artifact@v4.0.0
         with:
-          name: duality.gb
-          path: ${{github.workspace}}/repo/duality.gb
+          path: ${{github.workspace}}/repo/duality*
           if-no-files-found: error
 
       - name: Upload release files
         if: startsWith(github.ref, 'refs/tags/')
         uses: softprops/action-gh-release@v1
         with:
-          files: ${{github.workspace}}/repo/duality.gb
+          files: |
+            ${{github.workspace}}/repo/duality.gb
+            ${{github.workspace}}/repo/duality.map
+            ${{github.workspace}}/repo/duality_debug.gb
+            ${{github.workspace}}/repo/duality_debug.map