`--format json` should not be the same as `--format {{json .}}`, the
later should actually run through the go template and thus create one
json object per entry instead of an json array.
Includes a vendor of c/common@main since it requires a fix from there as
well.
This matches docker compat.
Fixes#16436
Signed-off-by: Paul Holzinger <pholzing@redhat.com>