fix: update automated checkpoint messages for consistency (#20924)

Author: Borda

.github/workflows/_legacy-checkpoints.yml

@@ -149,13 +149,11 @@ jobs:
           title: Adding test for legacy checkpoint created with ${{ env.PL_VERSION }}
           committer: GitHub <[email protected]>
           author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
-          commit-message: "adding `${{ env.PL_VERSION }}` checkpoint"
-          body: "**This is automated addition of created checkpoints with the latest `lightning` release!**"
+          body: "**This is automated addition of created checkpoint with the latest `${{ env.PL_VERSION }}` `lightning` release!**"
           delete-branch: true
           token: ${{ secrets.PAT_GHOST }}
           labels: |
             checkpointing
             tests
             pl
           assignees: borda
-          reviewers: borda

.github/workflows/docs-tutorials.yml

@@ -55,7 +55,6 @@ jobs:
           author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
           token: ${{ secrets.PAT_GHOST }}
           add-paths: _notebooks
-          commit-message: "update tutorials to `${{ env.SHA_LATEST }}`"
           branch: "docs/update-tutorials"
           # Delete the branch when closing pull requests, and when undeleted after merging.
           delete-branch: true
@@ -72,4 +71,3 @@ jobs:
             docs
             examples
           assignees: borda
-          reviewers: borda