📌 add lower bounds for graphviz and breathe

Signed-off-by: burgholzer <burgholzer@me.com>

Author: burgholzer

pyproject.toml

@@ -330,8 +330,8 @@ docs = [
   "sphinx>=7.4.7",
   "sphinx>=8.1.3; python_version >= '3.10'",
   "sphinx>=8.2.3; python_version >= '3.11'",
-  "graphviz",
-  "breathe",
+  "breathe>=4.36.0",
+  "graphviz>=0.20.3",
 ]
 test = [
   "pytest>=8.3.4",