Update git branch for commit verification in workflow

The Github workflow's step for verifying commits' existence has been updated. Instead of searching in the 'origin/main' branch, the workflow now checks in the 'origin/v3.0.1' branch. This modification ensures compatibility and consistency with the version being used.

.github/workflows/packages.yml

@@ -18,10 +18,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - name: Verify commit exists in origin/main
+      - name: Verify commit exists in origin/v3.0.1
         run: |
           git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/*
-          git branch --remote --contains | grep origin/main
+          git branch --remote --contains | grep origin/v3.0.1
       - name: Set VERSION variable
         run: |
           if [[ "${{ github.ref }}" == refs/tags/* && "${{ github.event_name }}" == "release" && "${{ github.event.action }}" == "published" ]]; then