Code cleanup scrapy.utils.python.WeakKeyCache #4684 and fixing ci alerts
Code cleanup scrapy.utils.python.WeakKeyCache #4684 and fixing ci alerts

elacuesta/scrapy,scrapy/scrapy,pablohoffman/scrapy,elacuesta/scrapy,elacuesta/scrapy,pablohoffman/scrapy,pawelmhm/scrapy,starrify/scrapy,dangra/scrapy,scrapy/scrapy,pablohoffman/scrapy,pawelmhm/scrapy,starrify/scrapy,pawelmhm/scrapy,scrapy/scrapy,dangra/scrapy,starrify/scrapy,dangra/scrapy