This PR updates `renovate.json5` to manage the version updates for the 12-factor documentation Spread tests. This PR was prepared using AI assistance. I used the following policy as a starting place for the updates: 1. Ignore `docs/requirements.txt` 2. For other files in the `docs` folder, disable major release updates in Renovate (someone would have to do those manually). 3. Lump minor/patch releases together (so you'd have one PR that updates everything) Note that the Go extension is not included because its version is handled through the snap; the Spread test and tutorial use `sudo snap install go --classic` with explicitly defining a version of Go. For Spring Boot, there is no native `start.spring.io` data source, so the custom rule uses `spring-boot-starter-parent` instead. The LLM claims that this data source tracks identical versions to `start.spring.io` ### Summary of changes * Added `ignorePaths` to ignore `docs/requirements.txt` * Added `packageRules` to disable major release updates and lump minor/patch releases together for files under `docs/tutorial/code/`. * Added `customManagers` to add custom rules for updating the `task.yaml` files for ExpressJS and Spring Boot. --- - [X] I've followed the [contribution guidelines](https://github.com/canonical/rockcraft/blob/main/CONTRIBUTING.md). - [X] I've signed the [CLA](http://www.ubuntu.com/legal/contributors/). - [Failures on files unrelated to the PR] I've successfully run `make lint && make test`. - [N/A] I've added or updated any relevant documentation. - [N/A] In documents I changed, I [added a meta description](https://canonical-starflow.readthedocs-hosted.com/how-to/add-a-page-meta-description/) if one was missing. - [ ] I've updated the relevant release notes.