Update CI workflow condition for publishing to GitHub Packages to check input parameter instead of branch reference

Author: mocsharp

.github/workflows/ci.yml

@@ -550,7 +550,7 @@ jobs:
     name: Publish to GitHub Packages
     runs-on: ubuntu-latest
     needs: [build, unit-test, integration-test]
-    if: ${{ ! ( github.event.inputs.nuget ) && ! ( contains(github.ref, 'refs/heads/main') ) }}
+    if: ${{ inputs.ga == 'false' }}
     steps:
       - uses: actions/download-artifact@v4
         id: download