Update api-reference in docs

Signed-off-by: Mathias L. Baumann <[email protected]>

Author: Marenz

mkdocs.yml

@@ -114,7 +114,7 @@ plugins:
           import:
             - https://docs.python.org/3/objects.inv
             - https://typing-extensions.readthedocs.io/en/stable/objects.inv
-            - https://frequenz-floss.github.io/frequenz-api-dispatch/v0.12/objects.inv
+            - https://frequenz-floss.github.io/frequenz-api-dispatch/v0.13/objects.inv
             - https://grpc.github.io/grpc/python/objects.inv
   # Note this plugin must be loaded after mkdocstrings to be able to use macros
   # inside docstrings. See the comment in `docs/_scripts/macros.py` for more