Update dependency get-timezone-offset to v1.0.5

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
get-timezone-offset	1.0.3 -> 1.0.5

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[renovate]

⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

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• any of the package files in this branch needs updating, or
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The artifact failure details are included below:

File name: amp-concert/package-lock.json