Update column 'updated_at' in container after repository storage move

What does this MR do?

We have several scripts in place that replicate some statistics information to other sources. Some of them depend on the updated_at column to identify the models they need to extract.

If we don't update the updated_at of the container after a repository storage move, the scripts won't know that they need to sync them.

Refs https://gitlab.com/gitlab-data/analytics/-/issues/7868

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Separation of EE specific content