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

[renovate]

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

Compare Source

• fe1a892 Build: bundle espree (fixes eslint/eslint.github.io#​546) (#​11467) (薛定谔的猫)
• 458053b Fix: avoid creating invalid regex in no-warning-comments (fixes #​11471) (#​11472) (Teddy Katz)

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[coveralls]

Coverage remained the same at 100.0% when pulling a6a4ab5 on renovate/eslint-5.x into c390e7f on master.

[coveralls]

Coverage remained the same at 100.0% when pulling a6a4ab5 on renovate/eslint-5.x into c390e7f on master.