Wikidata is at 51.3% of its maximum value (see [1]), so we still have
comfortable time to make this change, but it will inevitably be
necessary and there is no point in postponing this change into the
future. The autoincrement value will not get smaller. ¯\_(ツ)_/¯
Also since rc only stores stuff for 30 days, the table is not that
big.
[1] - https://grafana.wikimedia.org/d/79S1Hq9Mz/wikidata-reliability-metrics?viewPanel=29&orgId=1
Bug: T63111
Change-Id: Icf3dc9815814ef73aa6a39f1c221a349e6b76872
