Update actions/upload-artifact to v4

[jmhobbs]

The v2 version is deprecated and now causing failures: https://github.com/chromaui/chromatic-cli/actions/runs/10832862998/job/30058245987

There are no breaking changes in v4 for how we use the action, so it should be a simple upgrade.

📦 Published PR as canary version: 11.10.2--canary.1042.10837456647.0

✨ Test out this PR locally via:

npm install [email protected]
# or 
yarn add [email protected]

[codacy-production]

Coverage summary from Codacy

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Coverage variation	Diff coverage
Report missing for 1a404d91	✅ ∅ (target: 80.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (1a404d9)	Report Missing	Report Missing	Report Missing
Head commit (0e4890d)	8312	4484	53.95%

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1042)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[codykaup]

[ghengeveld]

🚀 PR was released in v11.10.1 🚀