Re-added shell:bash to Enable corepack, actions complain and crash wi… #16082

Job	Run time
Core Basic - Plone 5 (18.x)	6m 56s
Core Basic (18.x)	6m 11s
Core Basic (20.x)	6m 36s
Core Blocks (18.x)	8m 19s
Core Blocks - Listing (18.x)	4m 14s
Core Blocks (20.x)	7m 23s
Core Blocks - Listing (20.x)	4m 12s
Core Content (18.x)	3m 15s
Core Content (20.x)	2m 51s
Core Control Panels (18.x)	3m 49s
Coresandbox (18.x)	3m 51s
Core Control Panels (20.x)	3m 56s
Core Volto Slate (18.x)	7m 12s
Project Generator (18.x)	6m 58s
Core Volto Slate (20.x)	7m 27s
Multilingual (18.x)	3m 3s
Working Copy (18.x)	3m 9s
Project Generator (20.x)	6m 27s
Multilingual in Seamless Mode (18.x)	2m 49s
Seamless Mode (18.x)	6m 7s
	1h 44m 45s

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