chore: update typescript-eslint monorepo to v4.20.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@typescript-eslint/eslint-plugin	4.18.0 -> 4.20.0
@typescript-eslint/parser	4.18.0 -> 4.20.0

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Release Notes

typescript-eslint/typescript-eslint

v4.20.0

Compare Source

Features

• eslint-plugin: [space-infix-ops] support for class properties and type aliases (#​3231) (5414bf2)
• eslint-plugin: [type-annotation-spacing] handle space between ? and : (#​3138) (40bdb0b)

v4.19.0

Compare Source

Bug Fixes

• eslint-plugin: [member-delimiter-style] correct invalid fix for multiline with params on the same line (#​3177) (7ad343b)
• eslint-plugin: [promise-function-async] bad fixer with computed and literal methods (#​3163) (e3a3ea0)
• typescript-estree: [ts 4.2] add support for import type equal declaration (#​3189) (6a25faf)

Features

• eslint-plugin: [object-curly-spacing] support MappedType (#​3176) (0557a43)
• eslint-plugin: [unbound-method] improve error message (#​3203) (5cc5d2e), closes #​3201

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