fix: update Python version to 3.12 and upgrade pip in Dockerfiles

Signed-off-by: Mohamad Abuelhagag <mohammed.abuelhagag@gmail.com>

Author: dahagag

docker/app/Dockerfile

@@ -1,4 +1,4 @@
-ARG PYTHON_VERSION=3.9
+ARG PYTHON_VERSION=3.12
 FROM python:${PYTHON_VERSION} AS builder
 
 # hadolint ignore=DL3008
@@ -8,6 +8,8 @@ RUN apt-get update \
 
 WORKDIR /app
 
+RUN pip install --upgrade pip
+
 COPY requirements-dev.txt ./
 RUN pip install --no-cache-dir -r requirements-dev.txt \
  && rm -rf /tmp/pip-ephem-wheel-cache*

docker/client/Dockerfile

@@ -16,6 +16,8 @@ FROM python:${PYTHON_VERSION} AS builder
 
 WORKDIR /app
 
+RUN pip install --upgrade pip
+
 COPY requirements-dev.txt ./
 RUN pip install --no-cache-dir -r requirements-dev.txt