fix(deps): update dependency gcp-metadata to v5

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
gcp-metadata	^4.1.0 -> ^5.0.0

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Release Notes

googleapis/gcp-metadata

### [`v5.0.0`](https://togithub.com/googleapis/gcp-metadata/blob/HEAD/CHANGELOG.md#​500-httpsgithubcomgoogleapisgcp-metadatacomparev431v500-2022-04-22) [Compare Source](https://togithub.com/googleapis/gcp-metadata/compare/v4.3.1...v5.0.0) ##### ⚠ BREAKING CHANGES - drop node 10, update typescript to 4.6.3 ([#​519](https://togithub.com/googleapis/gcp-metadata/issues/519)) ##### Build System - drop node 10, update typescript to 4.6.3 ([#​519](https://togithub.com/googleapis/gcp-metadata/issues/519)) ([688749b](https://togithub.com/googleapis/gcp-metadata/commit/688749bc50407f3cd127a0b10ae09487d6fe5aea)) ##### [4.3.1](https://www.github.com/googleapis/gcp-metadata/compare/v4.3.0...v4.3.1) (2021-09-02) ##### Bug Fixes - **build:** switch primary branch to main ([#​481](https://www.togithub.com/googleapis/gcp-metadata/issues/481)) ([8a7965c](https://www.github.com/googleapis/gcp-metadata/commit/8a7965c47c077ef766e4b416358630c0b24b0af2))

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