Consolidated official-images PRs retain only last version in title

Current behavior

When multiple PRs are created, triggered by the automatic-updates.yml workflow, consolidation into a single PR, destined for the https://github.com/docker-library/official-images/pull list, the PR title and commit message reflect only the last update.

Title and commit message should list each of the Node.js versions contained in the docker-library/official-images pull request.

PR Title and commit message:

Node: feat: Node.js v24.22.2

PR contains Node.js 24.22.2 & 26.13.0

Node.js 26.13.0 is missing in the PR title and commit message

Relevant PRs which triggered PR creation / updates:

This is probably the same root cause that created docker-library/official-images#22729 with title "Node: fix: add back chmod 755 to Stackbrew"

Titles in https://github.com/docker-library/official-images/pull should reflect the version content of the PR. In this case it should have referred to "Node.js 27.0.0-alpha.0.0.0".