Update dependency jshint to v2.13.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
jshint (source)	2.12.0 -> 2.13.6

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Release Notes

jshint/jshint (jshint)

v2.13.6

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Bug Fixes

• Allow initializing const bindings to undef (fedaf6f)
• Correct error message (03b1a06)

v2.13.5

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Bug Fixes

• Tolerate late definition of async function (#​3618) (5c256a2)

v2.13.4

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Bug Fixes

• Remove shelljs (eb4609a)

v2.13.3

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Bug Fixes

• Recognize ES2020 globals (b1426f1)

v2.13.2

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Bug Fixes

• Add missing well-known globals (#​3582) (cc1adf6)
• add URL for node in src/vars.js (#​3570) (ca06e6a)
• change escape-sequence handler for double quotes (") (#​3566) (75e48b7)
• Limit "Too many Errors" (E043) to errors only (#​3562) (4a681b9)
• Tolerate keyword in object shorthand (057b1c6)
• Tolerate unterminated nullish coalescing (ecae54a)

v2.13.1

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Bug Fixes

• Allow invoking result of optional chaining (71ec395)
• Allow optional chaining call as satement (11dc0a6)
• Tolerate dangling NewExpression (7c890aa)

v2.13.0

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Bug Fixes

• Allow comma expression in MemberExpression (f05c8d1)
• Consider all exported bindings "used" (90228b7)
• Correct interpretation of ImportSpecifier (72a8102)
• Correct location for error (e831188)
• Correct location reported for directive (ee6aa68)
• Detect duplicate exported bindings (916c230)
• Don't warn when Function() is used without 'new'. (#​3531) (c13c5cc)
• Don't warn when RegExp() is used without 'new'. (#​3529) (c18a6e4)
• Enforce restrictions on new operand (c2719eb)
• Graduate BigInt support to esversion: 11 (553f816)
• Improve declaration parsing (a9bdc93)
• Report early reference with warning (2c1a5f8)
• Support RegExp Unicode property escapes (e7fa785)

Features

• Add support for "export * as ns from" (c46f464)
• Add support for import.meta (73d7e0d)
• Add support for dynamic import (6bfcaed)
• Add support for optional chaining (b125dbe)
• Implement support for nullish coalescing (f50b14d)

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