Fix Crawler on migration not remembering statistics

[Pijukatel]

For example, here:
https://console.apify.com/admin/users/TESTcrawleeXYySi6/actors/runs/xJBOX6Cta08cIAQs8#log

Migration reset handled requests and so the crawler that was supposed to do only 2000 requests did way more

[Pijukatel]

Seems like a migration problem where if migration happens, the crawler does not remember finished requests

[Pijukatel]

This is a Crawlee-level problem as the Statistics persistence is disabled by default. To be solved here: https://github.com/apify/crawlee-python/tree/crawler-persistance