* Improve `build.gradle`: - Upgrade some plugins - Remove unused (or mistaken) dependencies - Add transitive `exclude` into Spring Data dependencies - Add `inputs.dir(sourceDir)` for docs tasks in attempt to avoid their build because of `up-to-date`
* Improve `build.gradle`: - Upgrade some plugins - Remove unused (or mistaken) dependencies - Add transitive `exclude` into Spring Data dependencies - Add `inputs.dir(sourceDir)` for docs tasks in attempt to avoid their build because of `up-to-date`