Draft: do not merge, for testing purposes, delete when !10648 is merged (1)

Context

DO NOT MERGE

On top of !10648 (merged), this MR is for testing purposes only. It forces a dummy change in src/ so that we can easily see the resulting pipeline when there's a change in src/.

When !10648 (merged) is merged, this MR can be closed and the branch can be deleted.

Manually testing the MR

Checklist

• Document the interface of any function added or modified (see the coding guidelines)
• Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
• Select suitable reviewers using the Reviewers field below.
• Select as Assignee the next person who should take action on that MR