build: add graphviz to readthedocs apt_packages config

ErikBjare · ErikBjare · commit cbcee00ab196 · 2024-01-06T10:50:23.000+01:00
diff --git a/.readthedocs.yml b/.readthedocs.yml
@@ -15,6 +15,8 @@ build:
       - poetry config virtualenvs.create false
     post_install:
       - poetry install
+  apt_packages:
+    - graphviz
 
 sphinx:
   configuration: src/conf.py
