Merge topic 'graphviz-restore-per-target' into release-3.18

1829220310 Merge branch 'backport-3.17-graphviz-restore-per-target'
f3a6b4a209 Tests: Cover Graphviz support for per-target dependency graph options
93549b9224 Graphviz: Restore support for per-target dependency graph options

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5039