docs: using bake with remote and local metadata definition #6588

Job	Run time
flavor	5s
multi-images	6s
docker-push	25s
custom-labels-annotations	13s
images	9s
global-exps	10s
json	6s
tag-match (\d.\d.\d, 0)	5s
tag-schedule	9s
tag-match (\d.\d, 0)	8s
tag-semver (auto)	8s
tag-schedule (cron-{{date 'YYYYMMDD'}})	5s
tag-match (v(.*), 1)	9s
tag-semver (true)	12s
tag-schedule ({{date 'YYYYMMDD-HHmmss'}})	10s
tag-semver (false)	8s
tag-schedule (schedule)	5s
bake	30s
bake-annotations	14s
bake-cwd	22s
no-images	8s
output-env	14s
sep-tags ( )	6s
sep-tags (,)	8s
	4m 15s

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