Fix missing Python 3.9 updates

Author: Viicos

Dockerfile

@@ -40,7 +40,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
         libproj13 \
     && rm -rf /var/lib/apt/lists/*
 
-COPY --from=build /usr/local/lib/python3.8 /usr/local/lib/python3.8
+COPY --from=build /usr/local/lib/python3.9 /usr/local/lib/python3.9
 COPY --from=build /usr/local/bin/uwsgi /usr/local/bin/uwsgi
 
 # Stage 3.2 - Copy source code

INSTALL.rst

@@ -18,7 +18,7 @@ Prerequisites
 
 You need the following libraries and/or programs:
 
-* `Python`_ 3.8 or above
+* `Python`_ 3.9 or above
 * Python `Virtualenv`_ and `Pip`_
 * `PostgreSQL`_ 12 or above with PostGIS extension
 * `Node.js`_