Update dependency tslint to ^5.18.0

Created by: renovate[bot]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
tslint (source)	devDependencies	minor	^5.18.0	homepage, source

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Release Notes

palantir/tslint

v5.18.0

Compare Source

• [feature] New --print-config CLI flag (#​4744)
• [bugfix]no-unnecessary-type-assertion no longer flags x! non-null assertions if --strictNullChecks is not enabled (#​3724)
• [bugfix]quotemark handles unbalanced quotes more gracefully without crashing (#​4344)
• [docs] Add tslint-playground link to README and bug report template (#​4150)
• [enhancement]no-magic-numbers rule ignores arguments passed into default Number methods (#​3668)
• [new-fixer]comment-format (#​3583)
• [new-rule-option] "allow-trailing-lowercase" option for comment-format rule (#​3583)
• [new-rule-option] "ignore-accessors" for adjacent-overload-signatures to ignore getters / setters overloads (#​3718)
• [new-rule]no-async-without-await (#​3945)
• [new-rule]strict-comparisons (#​4519)

Thanks to our contributors!

• Josh Goldberg
• smoehrle
• Mateusz Witkowski
• Andy Hanson
• John Wiseheart
• Eran Shabi
• Tibor Blenessy
• AndreasGassmann
• Ryan Waskiewicz
• Isabelle

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