Update typescript-eslint monorepo to v2.15.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@typescript-eslint/eslint-plugin	devDependencies	minor	2.14.0 -> 2.15.0
@typescript-eslint/parser	devDependencies	minor	2.14.0 -> 2.15.0

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Release Notes

typescript-eslint/typescript-eslint

v2.15.0

Compare Source

Bug Fixes

• eslint-plugin: crash in no-unnecessary-type-arguments (#​1401) (01c939f)
• typescript-estree: correct persisted parse for windows (#​1406) (1a42f3d)

Features

• eslint-plugin: [strict-bool-expr] add allowSafe option (#​1385) (9344233)
• eslint-plugin: add no-implied-eval (#​1375) (254d276)

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[coveralls]

Pull Request Test Coverage Report for Build 2688

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 2686:	0.0%
Covered Lines:	107
Relevant Lines:	107

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💛 - Coveralls