Ensure freshness of settings with snippet creation

What does this MR do?

As we added it for projects in 541fb832, we need to ensure that we expire the setting before picking the snippet repository storage from the available ones.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content