Update typescript-eslint monorepo to v2.8.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@typescript-eslint/eslint-plugin	devDependencies	minor	2.7.0 -> 2.8.0
@typescript-eslint/parser	devDependencies	minor	2.7.0 -> 2.8.0

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Release Notes

typescript-eslint/typescript-eslint

v2.8.0

Compare Source

Bug Fixes

• eslint-plugin: [camelcase] handle optional member expr (#​1204) (9c8203f)
• eslint-plugin: [indent] fix decorator type (#​1189) (e2008e3)
• eslint-plugin: [indent] handle empty generic declarations (#​1211) (9aee06c)
• eslint-plugin: [no-type-alias] handle constructor aliases (#​1198) (1bb4d63)
• eslint-plugin: [no-unnec-type-arg] throwing on call/new expr (#​1217) (42a48de)
• eslint-plugin: [no-unnecessary-cond] fix naked type param (#​1207) (4fac6c5)
• eslint-plugin: [nuta] correctly handle null/undefined separation (#​1201) (9829dd3)
• eslint-plugin: [require-await] better handle nesting (#​1193) (eb83af1)
• eslint-plugin: [unified-signatures] crash: cannot read pro… (#​1096) (d1de3a7)
• eslint-plugin: disable base no-unused-expressions in all config (ecb3f4e)
• typescript-estree: correctly account for trailing slash in… (#​1205) (ba89168)
• typescript-estree: options range loc being always true (#​704) (db1aa18)

Features

• eslint-plugin: [no-type-alias] handle conditional types (#​953) (259ff20)
• eslint-plugin: add rule restrict-template-expressions (#​850) (46b58b4)
• eslint-plugin: add space-before-function-paren extension (d8b07a7)
• eslint-plugin: added new rule no-dynamic-delete (#​565) (864c811)
• eslint-plugin: added new rule no-untyped-public-signature (#​801) (c5835f3)

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