Generate signed commits in cron CI job

Author: lukaw3d

.github/workflows/generate-openapi.yml

@@ -26,9 +26,13 @@ jobs:
           cache-dependency-path: src/oasis-nexus/yarn.lock
       - run: yarn install --frozen-lockfile
       - run: yarn generate
+      - name: Create Change Log fragment
+        env:
+          FILE_NAME: ../../.changelog/${{ github.event.pull_request.number }}.internal.md
+        run: echo "Update API bindings" > "$FILE_NAME"
       - name: Create Pull Request with updated API bindings
         # https://github.com/peter-evans/create-pull-request
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v7
         with:
           token: ${{ secrets.PAT || secrets.GITHUB_TOKEN }}
           branch: generate-openapi
@@ -40,3 +44,4 @@ jobs:
             If CI actions and checks don't run in this PR: close it and reopen.
             https://github.com/peter-evans/create-pull-request/blob/main/docs/concepts-guidelines.md#triggering-further-workflow-runs
           labels: bot
+          sign-commits: true