Update build.yml

Trying to add canbus plugins on MacOS

Author: collin80

.github/workflows/build.yml

@@ -63,6 +63,7 @@ jobs:
         run: |
           mkdir -p SavvyCAN.app/Contents/MacOS/help
           cp -R help/* SavvyCAN.app/Contents/MacOS/help
+          cp /usr/local/share/qt/plugins/canbus/* SavvyCAN.app/Frameworks
           macdeployqt SavvyCAN.app -dmg
       
       - uses: actions/upload-artifact@v3