doc: add graphiz dependency for dev docs

There's a graph in cli.rst that needs graphviz to be built.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>

diff --git a/doc/developer/.readthedocs.yaml b/doc/developer/.readthedocs.yaml
index 891c5a041528c17f098b4e4e8b9c70cc4c6be2c1..90ee5c7677299540bdd1e2b2b7d94f2cbe56865b 100644 (file)
--- a/doc/developer/.readthedocs.yaml
+++ b/doc/developer/.readthedocs.yaml
@@ -6,6 +6,8 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.11"
+  apt_packages:
+    - graphviz
 
 python:
   install: