[DOC] Add missing graphviz module 16/136016/7
authorAndreas Geissler <andreas-geissler@telekom.de>
Mon, 25 Sep 2023 08:57:56 +0000 (10:57 +0200)
committerAndreas Geissler <andreas-geissler@telekom.de>
Mon, 25 Sep 2023 12:41:40 +0000 (14:41 +0200)
Tox fails due to missing graphviz module.
Added the installation in tox.ini files
(Ticket: IT-26010)

Issue-ID: OOM-2342

Change-Id: Ica9f750c6644386d2dc3fac6a786463929c320d6
Signed-off-by: Andreas Geissler <andreas-geissler@telekom.de>

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