Update GitHub Actions workflow for new release

The GitHub Actions workflow configuration has been updated to target the '3.0.1' branch instead of 'main'. Furthermore, the preview version set in the workflow has been updated to '3.0.1-preview', changing from the previous '3.0.0-preview'.

.github/workflows/packages.yml

@@ -3,7 +3,7 @@ on:
   workflow_dispatch:
   push:
     branches:
-      - main
+      - 3.0.1
     tags:
       - hotfix-* # e.g. 3.0.0-hotfix-1
   release:
@@ -31,7 +31,7 @@ jobs:
             TAG_NAME=${TAG_NAME#refs/tags/} # remove the refs/tags/ prefix
             echo "VERSION=${TAG_NAME}" >> $GITHUB_ENV
           else
-            echo "VERSION=3.0.0-preview.${{github.run_number}}" >> $GITHUB_ENV
+            echo "VERSION=3.0.1-preview.${{github.run_number}}" >> $GITHUB_ENV
           fi
       - name: Build
         run: dotnet build --configuration Release /p:Version=${VERSION}