[core] added python 3.14 docker image

Author: MrClock8163

.github/workflows/build-test-containers.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["python311", "python312", "python313"]
+        python-version: ["python311", "python312", "python313", "python314"]
     steps:
       -
         name: Login to Docker Hub

tests/docker/test_python314.dockerfile

@@ -0,0 +1,8 @@
+FROM python:3.14-slim-trixie
+
+LABEL maintainer="MrClock"
+LABEL name="GeoComPy Python 3.14 testing container"
+LABEL description="Python 3.14 testing container with preinstalled packages for the GeoComPy package"
+
+RUN apt-get update && apt-get install socat git -y
+RUN python -m pip install --upgrade pip --root-user-action=ignore