Provide a default token value (#1389)

.github/workflows/auto-release.yml

diff --git a/.github/workflows/auto-release.yml b/.github/workflows/auto-release.yml
index 4ca9a56..21ab088 100644
--- a/.github/workflows/auto-release.yml
+++ b/.github/workflows/auto-release.yml
@@ -18,6 +18,7 @@
       github_token:
         description: 'GitHub token for creating releases and pushing changes'
         required: true
+        default: ${{ github.token }}
 
 jobs:
   release-packager: