ci: update to Python 3.13, add testing on 3.12

Author: daniel-jones-dev

.gitlab-ci.yml

@@ -12,7 +12,7 @@ include:
 
 # Global --------------------------
 
-image: python:3.11
+image: python:3.13
 
 variables:
   PIP_CACHE_DIR: "${CI_PROJECT_DIR}/.cache/pip"
@@ -172,7 +172,7 @@ package:
   extends: .test
   parallel:
     matrix:
-      - DOCKER_IMAGE: "python:3.11"
+      - DOCKER_IMAGE: "python:3.13"
       - DOCKER_IMAGE: "python:3.6"
         USE_MOCK_SERVER: "use mock server"
         USE_OLD_POETRY_VERSION: "use old poetry version"
@@ -186,15 +186,19 @@ package:
         USE_MOCK_SERVER: "use mock server"
       - DOCKER_IMAGE: "python:3.11"
         USE_MOCK_SERVER: "use mock server"
+      - DOCKER_IMAGE: "python:3.12"
+        USE_MOCK_SERVER: "use mock server"
+      - DOCKER_IMAGE: "python:3.13"
+        USE_MOCK_SERVER: "use mock server"
       - DOCKER_IMAGE: "python:3.6"
         EXTRA_POETRY_ADD_ARGUMENT: "requests@2.0"
         USE_MOCK_SERVER: "use mock server"
         USE_OLD_POETRY_VERSION: "use old poetry version"
       - DOCKER_IMAGE: "python:3.9"
         EXTRA_POETRY_ADD_ARGUMENT: "requests@2.0"
         USE_MOCK_SERVER: "use mock server"
-      - DOCKER_IMAGE: "python:3.11"
-        # Set minimum possible requests and urllib3 versions to work with Python 3.11
+      - DOCKER_IMAGE: "python:3.13"
+        # Set minimum possible requests and urllib3 versions to work with Python 3.13
         EXTRA_POETRY_ADD_ARGUMENT: "requests@2.20 urllib3@1.23"
         USE_MOCK_SERVER: "use mock server"
   image: ${DOCKER_IMAGE}