Cleanup table pghero_query_stats

[Izorkin]

Create a mechanism to clean up the pghero_query_stats table so that old records are deleted

Expected behaviour

Old records in the table are automatically cleanup.

Actual behaviour

Table pghero_query_stats is constantly growing in size

[SuprajaRamesh]

If no one is working on this, can I pick this?

[Gargron]

You can pick this up but on mastodon.social this table is 26 MB big, which is basically not worth the effort.