Use slim variant for running image #647

Job	Run time
base_build (-bullseye, arm/v7)	4m 13s
get_dependencies	2m 36s
base_build (-bullseye, amd64)	55s
base_build (-bullseye, arm64)	4m 12s
base_build (-bullseye, 386)	52s
base_build (-threaded-bullseye, arm/v7)	4m 5s
base_build (-threaded-bullseye, amd64)	53s
base_build (-threaded-bullseye, arm64)	3m 57s
base_build (-threaded-bullseye, 386)	1m 1s
cpan_build (-bullseye, arm/v7)	50m 45s
cpan_build (-bullseye, arm64)	51m 18s
cpan_build (-bullseye, 386)	4m 46s
cpan_build (-threaded-bullseye, arm/v7)	50m 40s
cpan_build (-threaded-bullseye, arm64)	51m 56s
cpan_build (-threaded-bullseye, 386)	4m 59s
test_build (-bullseye)	14m 55s
test_build (-threaded-bullseye)	14m 12s
published_build (-bullseye)	43m 29s
published_build (-threaded-bullseye)	39m 14s
	5h 48m 58s

Provide feedback