Update typescript-eslint monorepo to v2.19.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@typescript-eslint/eslint-plugin	devDependencies	patch	2.19.0 -> 2.19.1
@typescript-eslint/parser	devDependencies	patch	2.19.0 -> 2.19.1

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Release Notes

typescript-eslint/typescript-eslint

v2.19.1

Compare Source

Bug Fixes

• eslint-plugin: [unbound-method] blacklist a few unbound natives (#​1562) (4670aab)
• typescript-estree: ts returning wrong file with project references (#​1575) (4c12dac)

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