OSIDB-3712: Create container image

[MrMarble]

This pull request introduces several changes to improve the Docker-based CI/CD pipeline for running tests, including updates to the Docker configuration, scripts, and test settings.

Docker Configuration and Scripts:

• Added a .dockerignore file to exclude unnecessary files from the Docker build context.
• Created a Dockerfile to set up the environment for running tests, including installing dependencies and configuring Kerberos authentication.
• Added auth.sh script for Kerberos authentication within the container.
• Added install-certs.sh script to install Red Hat certificates if the RH_CERT_URL environment variable is set.
• Added krb5.conf configuration file for Kerberos.
• Added .gitignore to the krb5.conf.d directory.

Documentation:

• Created a README.md file in the docker directory to provide instructions on building and running the Docker container, as well as running tests within the container.

Test Configuration:

• Updated package.json to simplify test scripts and remove unnecessary dependencies. [1] [2]
• Modified playwright.config.ts to use different reporters based on the CI environment.
• Adjusted test timeouts and expectations in tests/flaw.spec.ts to improve reliability. [1] [2]

Closes OSIDB-3712

[costaconrado]

LGTM!

[C-Valen]

Looks good