test: trigger e2e frontend tests

[sebastiendan]

Description

This PR refactors the docker CI workflow to have frontend e2e tests run right after the new docker image has been made available on Github Packages.

PR Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added or updated tests that comprehensively prove my change is effective or that my feature works