Update Italian Italian translations. @gianniftp #17905

Job	Run time
Core Basic (18.x)	6m 47s
Core Basic (20.x)	7m 34s
Core Blocks (18.x)	8m 50s
Core Content (18.x)	3m 30s
Core Control Panels (18.x)	4m 6s
Core Content (20.x)	3m 23s
Core Basic - Plone 5 (18.x)	6m 46s
Core Control Panels (20.x)	4m 52s
Core Blocks (20.x)	7m 57s
Core Blocks - Listing (18.x)	5m 25s
Coresandbox (18.x)	5m 28s
Core Volto Slate (18.x)	7m 34s
Core Blocks - Listing (20.x)	5m 8s
Project Generator (18.x)	7m 41s
Core Volto Slate (20.x)	7m 19s
Project Generator (20.x)	6m 51s
Multilingual (18.x)	5m 10s
Working Copy (18.x)	3m 8s
Deployment Mode (18.x)	7m 0s
Multilingual in Deployment Mode (18.x)	4m 17s
	1h 58m 46s

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