Bump @docker/actions-toolkit from 0.6.0 to 0.12.0 #6227

Job	Run time
bake	32s
docker-push	54s
flavor	6s
global-exps	9s
images	9s
json	8s
labels	8s
multi-images	11s
output-env	17s
sep-tags ( )	4s
sep-tags (,)	7s
tag-match (\d.\d.\d, 0)	5s
tag-match (\d.\d, 0)	7s
tag-match (v(.*), 1)	4s
tag-schedule	8s
tag-schedule (cron-{{date 'YYYYMMDD'}})	8s
tag-schedule ({{date 'YYYYMMDD-HHmmss'}})	9s
tag-schedule (schedule)	7s
tag-semver (auto)	10s
tag-semver (true)	6s
tag-semver (false)	8s
	3m 57s

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