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

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
google-gax	^3.5.8 -> ^4.0.0

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Release Notes

googleapis/gax-nodejs (google-gax)

### [`v4.0.2`](https://togithub.com/googleapis/gax-nodejs/blob/HEAD/CHANGELOG.md#402-2023-07-25) [Compare Source](https://togithub.com/googleapis/gax-nodejs/compare/v4.0.1...v4.0.2) ##### Bug Fixes - Update some pnpm deps ([#​1478](https://togithub.com/googleapis/gax-nodejs/issues/1478)) ([39583d5](https://togithub.com/googleapis/gax-nodejs/commit/39583d5f4faab89b511fe317bd1ec3334c2ea3f5)) ### [`v4.0.1`](https://togithub.com/googleapis/gax-nodejs/blob/HEAD/CHANGELOG.md#401-2023-07-21) [Compare Source](https://togithub.com/googleapis/gax-nodejs/compare/v4.0.0...v4.0.1) ##### Bug Fixes - `rimraf` version + remove conflicting types ([#​1475](https://togithub.com/googleapis/gax-nodejs/issues/1475)) ([f9f8b13](https://togithub.com/googleapis/gax-nodejs/commit/f9f8b1328c38718bf621b92338b3d81297525aa6)) - Add missing devDependency for compodoc ([#​1470](https://togithub.com/googleapis/gax-nodejs/issues/1470)) ([115e317](https://togithub.com/googleapis/gax-nodejs/commit/115e317728c8ae6fa0e61f54d0087e26382d8230)) - **deps:** Update dependency google-auth-library to v9 ([#​1476](https://togithub.com/googleapis/gax-nodejs/issues/1476)) ([8afdd59](https://togithub.com/googleapis/gax-nodejs/commit/8afdd591646a190fde38728f0df14c604643f5cc)) - **deps:** Update dependency retry-request to v6 ([#​1477](https://togithub.com/googleapis/gax-nodejs/issues/1477)) ([6401a88](https://togithub.com/googleapis/gax-nodejs/commit/6401a88c50fa0eb3eb8a73cefc830896369c3330)) - **deps:** Update protobufjs ([#​1467](https://togithub.com/googleapis/gax-nodejs/issues/1467)) ([0a7dd94](https://togithub.com/googleapis/gax-nodejs/commit/0a7dd948573bd9553a0e9548e9ab92dbcfcb7414)) - Replace proto-over-HTTP with REGAPIC ([#​1471](https://togithub.com/googleapis/gax-nodejs/issues/1471)) ([4266f43](https://togithub.com/googleapis/gax-nodejs/commit/4266f43922d0d582b8eced11f4a21c98a8b451fe)) - The return types for IAM service methods should be arrays, to match ReturnTuple ([#​1001](https://togithub.com/googleapis/gax-nodejs/issues/1001)) ([48eed95](https://togithub.com/googleapis/gax-nodejs/commit/48eed955e7329f55f9427a7bc0656cfe2af395e8)) ### [`v4.0.0`](https://togithub.com/googleapis/gax-nodejs/blob/HEAD/CHANGELOG.md#400-2023-05-17) [Compare Source](https://togithub.com/googleapis/gax-nodejs/compare/v3.6.1...v4.0.0) ##### ⚠ BREAKING CHANGES - remove is-stream & fast-text-encoding dependencies ([#​1442](https://togithub.com/googleapis/gax-nodejs/issues/1442)) - drop Node 12 & decouple development dependencies ([#​1439](https://togithub.com/googleapis/gax-nodejs/issues/1439)) ##### Features - Drop Node 12 & decouple development dependencies ([#​1439](https://togithub.com/googleapis/gax-nodejs/issues/1439)) ([61a7143](https://togithub.com/googleapis/gax-nodejs/commit/61a71436e9428c8118831a05fb5c7a3b2b3f99a5)) ##### Bug Fixes - Compilation error in fallback.ts ([#​1444](https://togithub.com/googleapis/gax-nodejs/issues/1444)) ([8e6888f](https://togithub.com/googleapis/gax-nodejs/commit/8e6888f469845a0a68dbab3047b3a6843e58da22)) ##### Build System - Remove is-stream & fast-text-encoding dependencies ([#​1442](https://togithub.com/googleapis/gax-nodejs/issues/1442)) ([111133c](https://togithub.com/googleapis/gax-nodejs/commit/111133c5a2bd5a54ebe99a337de9a5a58ee67d2e))

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