chore: fix issues with determine-playwright-tests action

[alexprudhomme]

https://coveord.atlassian.net/browse/KIT-3684

It had issues mostly in cases where a dependant package (headless) was changed. That case was handled by running every test in a single shard. I also made every use case clearer by them being triggered by exception. They are now all handled correctly like the list below.

• case where depending package is changed (headless, bueno) -> all tests should run in max shards
• case where another package is changed (quantic) -> no tests should run
• case where a subset of atomic is changed (atomic) -> only certain tests should run
• case where package-lock is changed -> all tests should run in max shards

[github-actions]

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	236.6	236.6	0
commerce	341.5	341.5	0
search	412.3	412.3	0
insight	401.6	401.6	0
recommendation	248.8	248.8	0
ssr	406	406	0
ssr-commerce	353.6	353.6	0

SSR Progress

Use case	SSR (#)	CSR (#)	Progress (%)
search	39	44	89
recommendation	0	4	0
case-assist	0	6	0
insight	0	27	0
commerce	0	15	0

Detailed logs

search : buildInteractiveResult
search : buildInteractiveInstantResult
search : buildInteractiveRecentResult
search : buildInteractiveCitation
search : buildGeneratedAnswer
recommendation : missing SSR support
case-assist : missing SSR support
insight : missing SSR support
commerce : missing SSR support