Update Python dependencies (#279)

* Update Python dependencies

* Fix spelling

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Dragomir Penev <[email protected]>

Author: renovate[bot]

charmcraft.yaml

@@ -15,4 +15,4 @@ parts:
       - cargo
       - pkg-config
     charm-binary-python-packages:
-      - psycopg2-binary==2.9.8  # renovate
+      - psycopg2-binary==2.9.9  # renovate