fix(deps): update all non-major dependencies

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@google-cloud/firestore	^4.9.7 -> ^4.9.8
uglify-js	^3.13.0 -> ^3.13.1

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Release Notes

googleapis/nodejs-firestore

### [`v4.9.8`](https://togithub.com/googleapis/nodejs-firestore/blob/master/CHANGELOG.md#​498-httpswwwgithubcomgoogleapisnodejs-firestorecomparev497v498-2021-03-15) [Compare Source](https://togithub.com/googleapis/nodejs-firestore/compare/v4.9.7...v4.9.8)

mishoo/UglifyJS

### [`v3.13.1`](https://togithub.com/mishoo/UglifyJS/releases/v3.13.1) [Compare Source](https://togithub.com/mishoo/UglifyJS/compare/v3.13.0...v3.13.1)  

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