chore: use lit robot for release action

PiperOrigin-RevId: 789900683

Author: asyncliz

.github/workflows/release-please.yml

@@ -15,4 +15,4 @@ jobs:
     steps:
       - uses: googleapis/release-please-action@v4
         with:
-          token: ${{ secrets.GITHUB_TOKEN }}
+          token: ${{ secrets.LIT_ROBOT_ACCESS_TOKEN }}

.github/workflows/update-docs-on-main.yml

@@ -37,7 +37,7 @@ jobs:
           committer: lit-robot <[email protected]>
           title: 'docs: update API docs'
           body: This PR was auto generated by the update-docs-on-main GitHub action.
-          reviewers: e111077,asyncliz,AndrewJakubowicz
+          reviewers: asyncliz
           branch: auto-update-docs
           labels: |
             Ready for Google