Update copilot-setup-steps.yml

prepare copy the sources

Author: laeubi

.github/workflows/copilot-setup-steps.yml

@@ -38,4 +38,5 @@ jobs:
         run: |
           sudo apt-get update -qq 
           sudo apt-get install -qq -y libgtk-3-dev libgtk-4-dev freeglut3-dev webkit2gtk-driver
+          cd bundles/org.eclipse.swt && java -Dws=gtk -Darch=x86_64 build-scripts/CollectSources.java -nativeSources 'binaries/org.eclipse.swt.gtk.linux.x86_64/target/natives-build-temp'