Upgrade Python version to 3.14 in Dockerfile and GitHub Actions workflow

Author: chrisbloe

.github/workflows/base-python-service-jobs.yml

@@ -41,7 +41,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: 3.9
+          python-version: 3.14
       - name: Run Unit tests
         run: |
           ./tasks test_unit
@@ -56,10 +56,10 @@ jobs:
     steps:
       - uses: actions/checkout@v6
 
-      - name: Set up Python 3.9
+      - name: Set up Python 3.14
         uses: actions/setup-python@v6
         with:
-          python-version: 3.9
+          python-version: 3.14
 
       - name: Configure AWS credentials
         id: auth

services/mesh-forwarder/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9-alpine3.22
+FROM python:3.14-alpine3.23
 
 RUN apk update && \
     apk -u list && \