upgrade pg client to 15

Author: Bram van Dartel

Dockerfile

@@ -86,7 +86,7 @@ RUN echo "**** install build packages ****" \
   && apk add --no-cache --virtual .build-deps gcc python3-dev musl-dev postgresql-dev build-base mariadb-dev libffi-dev jpeg-dev cargo rust \
   && echo "**** install pip packages ****" \
   && python3 -m pip install --upgrade pip \
-  && python3 -m pip install "cython<3.0.0" wheel --no-cache-dir \
+  && python3 -m pip install "cython<3.0.0" --no-cache-dir \
   && python3 -m pip install -r /app/dsmrreader/provisioning/requirements/base.txt --no-cache-dir \
   && python3 -m pip install psycopg2 --no-cache-dir \
   && python3 -m pip install mysqlclient --no-cache-dir \