fix(deps): update dependency google-gax to v4.3.6

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
google-gax (source)	4.3.5 -> 4.3.6

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Release Notes

googleapis/gax-nodejs (google-gax)

### [`v4.3.6`](https://togithub.com/googleapis/gax-nodejs/blob/HEAD/gax/CHANGELOG.md#436-2024-06-06) [Compare Source](https://togithub.com/googleapis/gax-nodejs/compare/google-gax-v4.3.5...google-gax-v4.3.6) ##### Bug Fixes - reduce duplicate code ([#​1612](https://togithub.com/googleapis/gax-nodejs/issues/1612)) ([c540ef6](https://togithub.com/googleapis/gax-nodejs/commit/c540ef610abae9717b6346a0354c05168bedc649))

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