workflows: rebase against origin/master

We're pushing to master so of course a rebase against master would
result in a no-op.

.github/workflows/publish-commit-bottles.yml

@@ -54,11 +54,9 @@ jobs:
         env:
           GIT_COMMITTER_NAME: ${{steps.env.outputs.name}}
           GIT_COMMITTER_EMAIL: ${{steps.env.outputs.email}}
-          STEP_RESULT: ${{toJson(steps.env.outputs)}}
         run: |
-          echo "$STEP_RESULT"
           cd $(brew --repo ${{github.repository}})
-          git rebase --force master
+          git rebase --force origin/master
           git show --pretty=fuller
           exit 0
           for try in $(seq 5); do