chore(deps): update dependency google-cloud-error-reporting to v1.6.1

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
google-cloud-error-reporting	==1.6.0 -> ==1.6.1

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Release Notes

googleapis/python-error-reporting

### [`v1.6.1`](https://togithub.com/googleapis/python-error-reporting/blob/HEAD/CHANGELOG.md#​161-httpsgithubcomgoogleapispython-error-reportingcomparev160v161-2022-08-12) [Compare Source](https://togithub.com/googleapis/python-error-reporting/compare/v1.6.0...v1.6.1) ##### Bug Fixes - **deps:** allow protobuf < 5.0.0 ([#​366](https://togithub.com/googleapis/python-error-reporting/issues/366)) ([9535a28](https://togithub.com/googleapis/python-error-reporting/commit/9535a289a458badf7406688d3e9a77f0e580d0a8)) - **deps:** require proto-plus >= 1.22.0 ([9535a28](https://togithub.com/googleapis/python-error-reporting/commit/9535a289a458badf7406688d3e9a77f0e580d0a8))

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