Update main.yml

Author: isc-tleavitt

.github/workflows/main.yml

@@ -77,7 +77,7 @@ jobs:
       - name: Produce CE Artifact
         run: |
           echo "set version=##class(%ZPM.PackageManager.Developer.Module).NameOpen(\"git-source-control\").Version" > package.script
-          echo "set file=\"/$artifact_dir/git-source-control-\"_version_\".xml\" write !,file,!" > package.script
+          echo "set file=\"/$artifact_dir/git-source-control-\"_version_\".xml\" write !,file,!" >> package.script
           echo "do ##class(SourceControl.Git.Utils).BuildCEInstallationPackage(file)" >> package.script
           echo "halt" >> package.script
           docker exec --interactive $instance iris session $instance -B < package.script