chore(deps): update dependency @sourcegraph/tslint-config to v13

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
@sourcegraph/tslint-config	devDependencies	major	^13.4.0	source

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Release Notes

sourcegraph/tslint-config

### [`v13.4.0`](https://togithub.com/sourcegraph/tslint-config/compare/v13.3.0...v13.4.0) [Compare Source](https://togithub.com/sourcegraph/tslint-config/compare/v13.3.0...v13.4.0) ### [`v13.3.0`](https://togithub.com/sourcegraph/tslint-config/compare/v13.2.0...v13.3.0) [Compare Source](https://togithub.com/sourcegraph/tslint-config/compare/v13.2.0...v13.3.0) ### [`v13.2.0`](https://togithub.com/sourcegraph/tslint-config/compare/v13.1.0...v13.2.0) [Compare Source](https://togithub.com/sourcegraph/tslint-config/compare/v13.1.0...v13.2.0) ### [`v13.1.0`](https://togithub.com/sourcegraph/tslint-config/compare/v13.0.0...v13.1.0) [Compare Source](https://togithub.com/sourcegraph/tslint-config/compare/v13.0.0...v13.1.0) ### [`v13.0.0`](https://togithub.com/sourcegraph/tslint-config/compare/v12.3.1...v13.0.0) [Compare Source](https://togithub.com/sourcegraph/tslint-config/compare/v12.3.1...v13.0.0)

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