[skip-ci] Renovate: Label renovate PRs & use preset
[skip-ci] Renovate: Label renovate PRs & use preset

Updating dependencies is important, make PRs standout from the crowd so
humans can spot (or search for) them easily.  Do this by making use of
the `containers/automation` config. preset to establish the new label
among other common settings.  Also, pretty up the JSON5 with some
whitespace to make a a bit easier to read.

Signed-off-by: Chris Evich <352d8596d782a469eafa66a46434e15a449859ce@redhat.com>

containers/image,containers/image