chore(deps): update dependency tslint to ^5.19.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
tslint (source)	devDependencies	minor	^5.19.0	homepage, source

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Release Notes

palantir/tslint

### [`v5.19.0`](https://togithub.com/palantir/tslint/blob/master/CHANGELOG.md#v5190) [Compare Source](https://togithub.com/palantir/tslint/compare/5.18.0...5.19.0) - [bugfix] relax [`promise-function-async`](https://palantir.github.io/tslint/rules/promise-function-async/) for short parenthesized arrow functions ([#​4765](https://togithub.com/palantir/tslint/issues/4765)) - [bugfix] fix [`no-async-without-await`](https://palantir.github.io/tslint/rules/no-async-without-await/) false positive for abstract methods ([#​4782](https://togithub.com/palantir/tslint/issues/4782)) - [bugfix] fix [`strict-comparison`](https://palantir.github.io/tslint/rules/strict-comparison/) false positive for `null` and `undefined` literals ([#​4786](https://togithub.com/palantir/tslint/issues/4786)) - [bugfix] improve [`no-angle-bracket-type-assertion`](https://palantir.github.io/tslint/rules/no-angle-bracket-type-assertion/) autofix semantics with more parentheses ([#​4823](https://togithub.com/palantir/tslint/issues/4823)) - [enhancement] add BigInt support to [`restrict-plus-operands`](https://palantir.github.io/tslint/rules/restrict-plus-operands/) rule ([#​4814](https://togithub.com/palantir/tslint/issues/4814)) - [enhancement][`await-promise`]() now supports new TypeScript 3.6 AST API symbols for async iterators ([#​4800](https://togithub.com/palantir/tslint/issues/4800)) - [new-rule-option] `check-strings` and `check-regex` options for [`max-line-length`](https://palantir.github.io/tslint/rules/max-line-length/) rule ([#​4798](https://togithub.com/palantir/tslint/issues/4798)) - [new-rule-option] `variable-declaration-ignore-function` option for [`typedef`](https://palantir.github.io/tslint/rules/typedef/) rule ([#​4769](https://togithub.com/palantir/tslint/issues/4769)) - [new-rule-option] `ignore-blank-lines` option for [`object-literal-sort-keys`](https://palantir.github.io/tslint/rules/object-literal-sort-keys/) rule ([#​4808](https://togithub.com/palantir/tslint/issues/4808)) - [new-rule][`no-for-in`]() ([#​4747](https://togithub.com/palantir/tslint/issues/4747)) - [new-rule][`invalid-void`]() ([#​4736](https://togithub.com/palantir/tslint/issues/4736)) - [new-rule][`strict-string-expressions`]() reports errors on type coercions found in string expressions ([#​4807](https://togithub.com/palantir/tslint/issues/4807)) - [new-rule][`no-promise-as-boolean`]() ([#​4790](https://togithub.com/palantir/tslint/issues/4790)) - [docs] link to OSS fellowship medium post in README ([#​4821](https://togithub.com/palantir/tslint/issues/4821)) Thanks to our contributors! - Josh Pike - Tanmoy Bhowmik - Michael Withagen - Evgeniy Timokhov - Vitalij Krotov - Josh Goldberg - Veda - Guido - Robert Fink - Max Sysoev

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[codecov-io]

Codecov Report

Merging #627 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #627   +/-   ##
=======================================
  Coverage   83.09%   83.09%           
=======================================
  Files          15       15           
  Lines        2058     2058           
  Branches      489      423   -66     
=======================================
  Hits         1710     1710           
  Misses        346      346           
  Partials        2        2

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