Playwright tests

[cedric-anne]

Checklist before requesting a review

• I have read the CONTRIBUTING document.
• I have performed a self-review of my code.
• I have added tests that prove my fix is effective or that my feature works.
• This change requires a documentation update.

Description

This PR will contain all changes related to Playwright tests and will be merged once everything will be ready. Until it is done, PRs related to Playwright must target the task/playwright branch.

[AdrienClairembault]

(I'll force push regularly to rebase this branch to the latest 11.0/bf)

[AdrienClairembault]

Tasks list:

• Setup e2e environment (Add E2E environment #21802)
• Update glpi-project/tools to handle playwright files (Add support for playwright files tools#84)
• Install playwright, with a proof of work using example tests (Install and run playwright #22028 and Simplify playwright version synchronization in makefile #22101)
• Load .env files to setup base URL, update proof of work tests to target a real GLPI page (Use .env for playwright configuration #22097)
• Add CI workflow to run tests (Add CI configuration for playwright #22103)
• Lint tests (Lint playwright tests #22323, Fix playwright lint #22328)
• Support authentication, update proof of work to show a test that login into GLPI (Logged in tests #22121)
• Support changing profiles, update proof of work to show a test as a self service user (Switch profiles in playwright's tests #22344)
• Support GLPI's API, update proof of work to show a test that use the API to create an item (Use GLPI api in e2e tests #22371)
• Remove proof of work tests and add a few real tests (Migrate tests to playwright (1) #22384)
• Clean up GLPI development and CI images from previous PoC -> Nothing to remove
• Update legacy run_tests.sh script -> Almost no one use it anymore, lets not waste time on this
• Cache browsers on CI (Cache playwright browsers + fix lint #22324) -> Documentation says to not cache browsers
• Improve the PLAYWRIGHT_VERSION variable in the makefile by using jq and the lock file (#Add jq to dev image docker-images#235 and Use jq to compute playwright version #22339)
• Explain how to debug CI traces (d060c55).
• Improve the readme with a few examples of how to write tests (Explain how to write e2e tests in the README #22425)
• Fail the tests if the logs are not empty (Fail playwright step if errors are found in the logs #22409)
• Fix issue on first test always failing due to a FilesystemException (Fix race condition when creating illustrations directory #22406)
• Use paid runner? Can be delayed to post-merge as we won't have many tests at this point
• Merge to 11.0/bugfixes