Update dependency eslint to v5.12.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
eslint	devDependencies	minor	5.11.1 -> 5.12.0	homepage, source

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Release Notes

eslint/eslint

### [`v5.12.0`](https://renovatebot.com/gh/eslint/eslint/releases/v5.12.0) [Compare Source](https://renovatebot.com/gh/eslint/eslint/compare/v5.11.1...v5.12.0) - [`0d91e7d`](https://renovatebot.com/gh/eslint/eslint/commit/0d91e7d28e5eba79a6032165cdef5d4549d26462) Update: Add sort-imports ignoreDeclarationSort (fixes [#​11019](https://renovatebot.com/gh/eslint/eslint/issues/11019)) ([#​11040](https://renovatebot.com/gh/eslint/eslint/issues/11040)) (Remco Haszing) - [`f92d6f0`](https://renovatebot.com/gh/eslint/eslint/commit/f92d6f05c4dcd4a3a0616871e10b31edae9dfad5) Build: Add karma-chrome-launcher support ([#​11027](https://renovatebot.com/gh/eslint/eslint/issues/11027)) (薛定谔的猫) - [`166853d`](https://renovatebot.com/gh/eslint/eslint/commit/166853d9c59db493f0b1bb68a67ad868662a4205) Upgrade: eslint-plugin-eslint-plugin@2.0.1 ([#​11220](https://renovatebot.com/gh/eslint/eslint/issues/11220)) (薛定谔的猫) - [`bfff77a`](https://renovatebot.com/gh/eslint/eslint/commit/bfff77ad4eaa02e2e62481c986634df38d5db6e5) Fix: no-param-reassign parameter in ternary operator (fixes [#​11236](https://renovatebot.com/gh/eslint/eslint/issues/11236)) ([#​11239](https://renovatebot.com/gh/eslint/eslint/issues/11239)) (周昊宇) - [`258b654`](https://renovatebot.com/gh/eslint/eslint/commit/258b6541f61dc3a9ae64e200680766a11c3dd316) Upgrade: require-uncached renamed to import-fresh ([#​11066](https://renovatebot.com/gh/eslint/eslint/issues/11066)) (薛定谔的猫)

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