⚗️ fix: Try to get RTD working

Author: SilviaAmAm

.readthedocs.yaml

@@ -9,8 +9,9 @@ build:
   os: ubuntu-24.04
   tools:
     python: "3.12"
-  create_environment:
-    - export PYTHONPATH=$PYTHONPATH:`pwd`/../backend/src
+  jobs:
+    pre_create_environment:
+      - export PYTHONPATH=$PYTHONPATH:`pwd`/../backend/src
 
 
 # Build documentation in the "docs/" directory with Sphinx