doc(client-python): adding the missing logo

Author: guzmud

.github/img/logo_filigran.png

@@ -4,7 +4,7 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.12"
+    python: "3.14"
 
 sphinx:
   configuration: docs/conf.py