chore(deps): update dependency @google-cloud/logging-winston to v4.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@google-cloud/logging-winston	4.0.0 -> 4.0.3

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Release Notes

googleapis/nodejs-logging-winston

### [`v4.0.3`](https://togithub.com/googleapis/nodejs-logging-winston/blob/master/CHANGELOG.md#​403-httpswwwgithubcomgoogleapisnodejs-logging-winstoncomparev402v403-2021-01-21) [Compare Source](https://togithub.com/googleapis/nodejs-logging-winston/compare/v4.0.2...v4.0.3) ### [`v4.0.2`](https://togithub.com/googleapis/nodejs-logging-winston/blob/master/CHANGELOG.md#​402-httpswwwgithubcomgoogleapisnodejs-logging-winstoncomparev401v402-2020-12-08) [Compare Source](https://togithub.com/googleapis/nodejs-logging-winston/compare/v4.0.1...v4.0.2) ### [`v4.0.1`](https://togithub.com/googleapis/nodejs-logging-winston/blob/master/CHANGELOG.md#​401-httpswwwgithubcomgoogleapisnodejs-logging-winstoncomparev400v401-2020-11-03) [Compare Source](https://togithub.com/googleapis/nodejs-logging-winston/compare/v4.0.0...v4.0.1)

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