added proxy config

.gitlab-ci.yml

-image: python:3.10
+image: python:3.10  # or python:3.11 if needed
 
 stages:
   - test
@@ -7,6 +7,9 @@ stages:
 variables:
   PIP_DISABLE_PIP_VERSION_CHECK: "1"
   PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
+  HTTP_PROXY: "http://webproxy.bs.ptb.de:8080"
+  HTTPS_PROXY: "http://webproxy.bs.ptb.de:8080"
+  NO_PROXY: "*.ptb.de"
 
 cache:
   paths:
@@ -15,18 +18,19 @@ cache:
 before_script:
   - python -m venv venv
   - source venv/bin/activate
+  - pip config set global.proxy $HTTP_PROXY  # Ensure pip respects the proxy
   - pip install -U pip setuptools wheel
-  - pip install -e .[dev]  # Install core dependencies for testing
 
 test_default:
   stage: test
   script:
+    - pip install .[dev]  # Install test dependencies
     - pytest --junitxml=report.xml --cov=dccXMLJSONConv
 
 test_web:
   stage: test
   script:
-    - pip install -e .[web]  # Install Web API dependencies
+    - pip install .[web]  # Install Web API dependencies
     - pytest --junitxml=report_web.xml --cov=dccXMLJSONConv
 
 build: