ci: use bot GitHub account

.github/workflows/release.yml

@@ -9,13 +9,6 @@ on:
 
 concurrency: ${{ github.workflow }}-${{ github.ref }}
 
-permissions:
-    actions: write
-    contents: write
-    id-token: write
-    packages: write
-    pull-requests: write
-
 jobs:
   release:
     runs-on: ubuntu-latest
@@ -25,6 +18,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.BOT_TOKEN }}
+
+      - name: Register Git user
+        run: |
+          git config user.name rollups-contracts-bot
+          git config user.email [email protected]
 
       - uses: actions/setup-node@v4
         with:
@@ -36,9 +36,10 @@ jobs:
       - name: Create release PR or publish to npm
         uses: changesets/action@v1
         with:
+          setupGitUser: false
           commit: "chore: version packages"
           publish: yarn changeset publish
           cwd: onchain/rollups
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.BOT_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}