Update dependency google/apiclient to v2.16.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
google/apiclient (source)	2.15.3 -> 2.16.0

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Release Notes

googleapis/google-api-php-client (google/apiclient)

### [`v2.16.0`](https://togithub.com/googleapis/google-api-php-client/blob/HEAD/CHANGELOG.md#2160-2024-04-24) [Compare Source](https://togithub.com/googleapis/google-api-php-client/compare/v2.15.4...v2.16.0) ##### Features - Add universe domain support ([#​2563](https://togithub.com/googleapis/google-api-php-client/issues/2563)) ([35895de](https://togithub.com/googleapis/google-api-php-client/commit/35895ded90b507074b3430a94a5790ddd01f39f0)) ### [`v2.15.4`](https://togithub.com/googleapis/google-api-php-client/blob/HEAD/CHANGELOG.md#2154-2024-03-06) [Compare Source](https://togithub.com/googleapis/google-api-php-client/compare/v2.15.3...v2.15.4) ##### Bug Fixes - Updates phpseclib because of a security issue ([#​2574](https://togithub.com/googleapis/google-api-php-client/issues/2574)) ([633d41f](https://togithub.com/googleapis/google-api-php-client/commit/633d41f1b65fdb71a83bf747f7a3ad9857f6d02a))

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