Update dependency @actions/core to v3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@actions/core (source)	^2.0.0 → ^3.0.0

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Release Notes

actions/toolkit (@​actions/core)

v3.0.0

• Breaking change: Package is now ESM-only
  • CommonJS consumers must use dynamic import() instead of require()

v2.0.3

• Bump @actions/http-client to 3.0.2

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Configuration

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• If you want to rebase/retry this PR, check this box

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[renovate]

Renovate Ignore Notification

Because you closed this PR without merging, Renovate will ignore this update. You will not get PRs for any future 3.x releases. But if you manually upgrade to 3.x then Renovate will re-enable minor and patch updates automatically.

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