chore(deps): update dependency eslint to v5.15.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
eslint	devDependencies	patch	5.15.0 -> 5.15.1	homepage, source

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Release Notes

eslint/eslint

### [`v5.15.1`](https://togithub.com/eslint/eslint/releases/v5.15.1) [Compare Source](https://togithub.com/eslint/eslint/compare/v5.15.0...v5.15.1) - [`fe1a892`](https://togithub.com/eslint/eslint/commit/fe1a892f85b09c3d2fea05bef011530a678a6af5) Build: bundle espree (fixes [eslint/eslint.github.io#​546](https://togithub.com/eslint/eslint.github.io/issues/546)) ([#​11467](https://togithub.com/eslint/eslint/issues/11467)) (薛定谔的猫) - [`458053b`](https://togithub.com/eslint/eslint/commit/458053b0b541f857bf233dacbde5ba80681820f8) Fix: avoid creating invalid regex in no-warning-comments (fixes [#​11471](https://togithub.com/eslint/eslint/issues/11471)) ([#​11472](https://togithub.com/eslint/eslint/issues/11472)) (Teddy Katz)

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