fix(deps): Update typescript-eslint monorepo to v6.21.0 (#143)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [@typescript-eslint/eslint-plugin](https://togithub.com/typescript-eslint/typescript-eslint) ([source](https://togithub.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin)) | devDependencies | minor | [`6.20.0` -> `6.21.0`](https://renovatebot.com/diffs/npm/@typescript-eslint%2feslint-plugin/6.20.0/6.21.0) |
| [@typescript-eslint/parser](https://togithub.com/typescript-eslint/typescript-eslint) ([source](https://togithub.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser)) | devDependencies | minor | [`6.20.0` -> `6.21.0`](https://renovatebot.com/diffs/npm/@typescript-eslint%2fparser/6.20.0/6.21.0) |

---

### Release Notes

<details>
<summary>typescript-eslint/typescript-eslint (@&#8203;typescript-eslint/eslint-plugin)</summary>

### [`v6.21.0`](https://togithub.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#6210-2024-02-05)

[Compare Source](https://togithub.com/typescript-eslint/typescript-eslint/compare/v6.20.0...v6.21.0)

##### 🚀 Features

-   export plugin metadata

-   allow `parserOptions.project: false`

-   **eslint-plugin:** add rule prefer-find

##### 🩹 Fixes

-   **eslint-plugin:** \[no-unused-vars] don't report on types referenced in export assignment expression

-   **eslint-plugin:** \[switch-exhaustiveness-check] better support for intersections, infinite types, non-union values

-   **eslint-plugin:** \[consistent-type-imports] dont report on types used in export assignment expressions

-   **eslint-plugin:** \[no-unnecessary-condition] handle left-hand optional with exactOptionalPropertyTypes option

-   **eslint-plugin:** \[class-literal-property-style] allow getter when same key setter exists

-   **eslint-plugin:** \[no-unnecessary-type-assertion] provide valid fixes for assertions with extra tokens before `as` keyword

##### ❤️  Thank You

-   auvred
-   Brad Zacher
-   Kirk Waiblinger
-   Pete Gonzalez
-   YeonJuan

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

</details>

<details>
<summary>typescript-eslint/typescript-eslint (@&#8203;typescript-eslint/parser)</summary>

### [`v6.21.0`](https://togithub.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#6210-2024-02-05)

[Compare Source](https://togithub.com/typescript-eslint/typescript-eslint/compare/v6.20.0...v6.21.0)

##### 🚀 Features

-   allow `parserOptions.project: false`

##### ❤️  Thank You

-   auvred
-   Brad Zacher
-   Kirk Waiblinger
-   Pete Gonzalez
-   YeonJuan

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

</details>

---

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---

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Author: cq-bot