The `v3` has to be updated by Dependabot automatically
**Auto-cherry-pick to `6.2.x`**
# Conflicts:
# .github/workflows/announce-milestone-planning.yml
Apparently Dependabot can upgrade reusable GHA workflows as well.
So less burden on support and less stress from changes in those reusable workflows in `main`
(cherry picked from commit de58d8c942)
* Use `providers.provider` for `modifiedFiles`.
This defers the looking up of `modifiedFiles` until it is used. It
also allows other tasks to be ran from the non-primary work tree.
Working in another work tree is essential for Antora which will clone
each branch/tag into a new work tree to process it.
* Migrate Structure
* Insert explicit ids for headers
* Fix image::image
* Copy default antora files
* Fix indentation for all pages
* Split files
* Generate a default navigation
* Remove includes
* Fix cross references
* Enable Section Summary TOC for small pages
* Polish nav.adoc
* Fix duplicate ids
* Escape {firstname} and {lastname}
* Remove links to htmlsingle and pdf Formats
* Fix broken links
* Disable attributes for ${debezium-version}
* Migrate to Asciidoctor Tabs
* Move to src/reference/antora
* Remove Asciidoctor Build
* deploy-docs only spring-projects
According to the `gradle/gradle-build-action` docs it caches only a `main` branch.
This is not appropriate for us since we really never build `main` on GH actions.
With this change we will experiment if `burrunan/gradle-cache-action` does what we would like to get from the Gradle cache feature
* Some config adjustments for `gradle-cache-action`
* Fix `pr-build-workflow.yml` removing unused services: now they are pulled by Testcontainers
* Use official `rabbitmq:management` image instead of `MQTT`-based.
The `MQTT` is now tested with Testcontainers and Mosquitto broker image
Fixes https://github.com/spring-projects/spring-integration/issues/3686
* Add `src/idea` with respective editor config for IntelliJ IDEA.
Must be imported into an IDE
* Add `src/eclipse` with respective editor config for Eclipse/STS
* Reformat imports in source code according a new editor config
