Documentation content repository: update the workflow to simplify xref validation

[tbouffard]

Once #582 has been merged, update the documentation

Repositories managing several documentation versions

• [x] bcd
  • [x] default branch https://github.com/bonitasoft/bonita-continuous-delivery-doc/pull/211
  • [x] other branches - require content propagation https://github.com/bonitasoft/bonita-continuous-delivery-doc/commit/ed61f6479f5a56f0e31aa404581a6ed1609e4d1b in 4.0
• [x] bonita-doc
  • [x] default branch: https://github.com/bonitasoft/bonita-doc/pull/2416
  • [x] other branches: https://github.com/bonitasoft/bonita-doc/commit/72effe39c90cf8d26c790849508beb0b7184ce1e in 2023.2

Single version repository

• [x] central https://github.com/bonitasoft/bonita-central-doc/pull/29
• [x] cloud https://github.com/bonitasoft/bonita-cloud-doc/pull/48/
• [x] ~labs~. No workflow, xref validation done while publish the PR preview as this component as no cross references with other components
• [x] test-toolkit https://github.com/bonitasoft/bonita-test-toolkit-doc/pull/44

Nothing to do for bonita-labs-doc

ignore-errors: false https://github.com/bonitasoft/bonita-labs-doc/blob/b758954b2b9343f8f75e2548ba0f8f8ab44a930e/.github/workflows/build-pr-preview.yml#L17-L23

[tbouffard]

All tasks are completing, so closing this issue.