Merge branch 'upgrade-python-and-gcc-images' into 'ci-episode-7-exercise-1-using-includes'

Upgrade Python and Gcc Docker images used

See merge request !19

.gitlab/ci/common.gitlab-ci.yml

@@ -12,7 +12,7 @@ stages:
   - run
 
 default:
-  image: python:3.10
+  image: python:3.11
   interruptible: true
 
 .install_dependencies:
@@ -23,6 +23,6 @@ default:
 .compiler_versions:
   parallel:
     matrix:
-      - VERSION: [ "10", "11", "12" ]
+      - VERSION: [ "11", "12" ]
 
 ...

.gitlab/ci/run.gitlab-ci.yml

@@ -6,7 +6,7 @@
 ---
 
 run:
-  image: gcc:11
+  image: gcc:12
   stage: run
   script:
     - cd build_gcc_11/bin/ && ./helloWorld