chore(deps): update actions/cache action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	major	v3 -> v4

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Release Notes

actions/cache (actions/cache)

v4

Compare Source

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[sweep-nightly]

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• Apply: All new business logic should have corresponding unit tests.
• Apply: Refactor large functions to be more modular.
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[sweep-ai-deprecated]

Apply Sweep Rules to your PR?

• Apply: All new business logic should have corresponding unit tests.
• Apply: Refactor large functions to be more modular.
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