chore(quantic): move playwright setup to docker

[louis-bompart]

Similar to #6139 , for quantic.

Without Docker:

With Docker:

Caches & sometimes don't play nicely together, and here, the cache is not really the right API in retrospect (we changed this recently, too, for turborepo build cache, for example), hence artifacts.

KIT-5133

[developer-experience-bot]

Pull Request Report

PR Title

✅ Title follows the conventional commit spec.

Live demo links

• Storybook

• Playwright report

Bundle Size

File	Old (kb)	New (kb)	Change (%)
case-assist	255.6	255.6	0
commerce	369.4	369.4	0
search	427.1	427.1	0
insight	418.3	418.3	0
recommendation	266.4	266.4	0
ssr	421.5	421.5	0
ssr-commerce	386.5	386.5	0
ssr-commerce-next	387.8	387.8	0
ssr-next	422.1	422.1	0

[github-actions]

🔗 Scratch Orgs ready to test this PR:

• ✅ LWS Enabled: Open Org
• ✅ LWS Disabled: Open Org

[vhilotii-coveo]

🚀

[mmitiche]

I see that changes in this PR didn't trigger the run of E2E tests here: https://github.com/coveo/ui-kit/actions/runs/18550935009?pr=6167 because these currently run only when a change occurs in the Headless folder or the Quantic folder, that's something we could improve as it's very relevant to run these in such PRs.

[mmitiche]

LGTM 👍

[louis-bompart]

I see that changes in this PR didn't trigger the run of E2E tests here: https://github.com/coveo/ui-kit/actions/runs/18550935009?pr=6167 because these currently run only when a change occurs in the Headless folder or the Quantic folder, that's something we could improve as it's very relevant to run these in such PRs.

Indeed!