Update sync-beta-upstream.yaml

Author: shmpwk

.github/workflows/sync-beta-upstream.yaml

@@ -21,10 +21,6 @@ jobs:
         uses: autowarefoundation/autoware-github-actions/sync-branches@v1
         with:
           token: ${{ steps.generate-token.outputs.token }}
-          base-branch: beta/<version>
-          sync-pr-branch: sync-beta-upstream
-          sync-target-repository: https://github.com/tier4/autoware_launch.git
-          sync-target-branch: beta/<version>
           base-branch: beta/v0.46.0
           sync-pr-branch: sync-beta-upstream
           sync-target-repository: https://github.com/tier4/autoware_launch.git