Update the CI/CD workflow for Gitlab

Merge Request Title: Update the CI/CD workflow for Gitlab

Description

This merge request introduces changes to the GitLab CI/CD pipeline configuration to ensure that the C and C++ programs are built and tested correctly. The modifications include:

• Added artifact handling to persist compiled executables between jobs.
• Configured dependencies between build and test jobs to ensure the executables are available for testing.

Changes Made

• Updated the .gitlab-ci.yml file to include:
  • Artifacts for the build_c and build_cpp jobs to save the compiled executables.
  • Dependencies in the test_c and test_cpp jobs to access the artifacts from the build jobs.

Why This Change is Necessary

The previous configuration resulted in errors during the test jobs because the compiled executables were not available in the isolated job environments. By implementing artifact handling and job dependencies, we ensure that the test jobs can access the necessary files, leading to successful execution of the tests.

Testing

• Verified that the pipeline runs successfully with the new configuration.
• Confirmed that both the C and C++ programs compile and execute correctly with simulated user input.