fix(ci): authenticate bot pushes through checkout

.github/workflows/agents-release.yml

@@ -83,6 +83,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          token: ${{ secrets.MCP_RELEASE_TOKEN }}
 
       - name: Download agent version patch
         uses: actions/download-artifact@v4
@@ -91,15 +92,10 @@ jobs:
 
       - name: Apply and push agent version bump
         shell: bash
-        env:
-          RELEASE_TOKEN: ${{ secrets.MCP_RELEASE_TOKEN }}
         run: |
           set -euo pipefail
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
-          if [ -n "${RELEASE_TOKEN}" ]; then
-            git remote set-url origin "https://x-access-token:${RELEASE_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"
-          fi
           git fetch origin main --no-tags
           git switch --detach origin/main