ci: update dependency @angular-ru/eslint-config to v15.306.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@angular-ru/eslint-config	15.304.6 -> 15.306.1

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Release Notes

Angular-RU/angular-ru-sdk

### [`v15.306.1`](https://togithub.com/Angular-RU/angular-ru-sdk/blob/master/CHANGELOG.md#​153061-2021-07-13) [Compare Source](https://togithub.com/Angular-RU/angular-ru-sdk/compare/v15.304.6...v15.306.1) ##### Build System / Dependencies - update eslint ([#​757](https://togithub.com/Angular-RU/angular-ru-sdk/pull/757)) ([c215425e](https://togithub.com/Angular-RU/angular-ru-sdk/commit/c215425e5a987e8383830aa10e722447d624403e))

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Configuration

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