docs(bezier-react): update installation section (#1701)

## Self Checklist

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**label** to the PR.
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**changeset**](https://github.com/changesets/changesets/blob/main/docs/adding-a-changeset.md)
about the changes that needed to be released. (or didn't have to)
- [x] I wrote or updated **documentation** related to the changes. (or
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## Summary
<!-- Please brief explanation of the changes made -->
설치할 의존성의 목록을 업데이트 했습니다.

## Details
<!-- Please elaborate description of the changes -->
`@types/styled-components` 라이브러리가 설치되어 있지 않은 경우, styled 를 import 하는 경우에
타입이 any로 추론되는 문제가 발생합니다.

![image](https://github.com/channel-io/bezier-react/assets/42037851/65ec073d-3bee-4311-b4b8-80f36a4dc976)

본 PR은 이 문제를 해결하는 방법중 하나를 제시합니다.

장기적으로는, 해당 의존성을 설치하지 않아도 되도록 install 과정에서 자동으로 의존성을 추가하도록 하여야 합니다.

### Breaking change? (Yes/No)
<!-- If Yes, please describe the impact and migration path for users -->
No

## References
<!-- Please list any other resources or points the reviewer should be
aware of -->

Author: nabi-chan

packages/bezier-react/README.md

@@ -7,13 +7,22 @@ Bezier React is a React components library that implements Bezier design system.
 ### npm
 
 ```bash
-npm i @channel.io/bezier-react styled-components
+npm i @channel.io/bezier-react styled-components@5
+npm i -D @types/styled-components@5
 ```
 
 ### yarn
 
 ```bash
-yarn add @channel.io/bezier-react styled-components
+yarn add @channel.io/bezier-react styled-components@5
+yarn add -D @types/styled-components@5
+```
+
+### pnpm
+
+```bash
+pnpm install @channel.io/bezier-react styled-components@5
+pnpm install -D @types/styled-components@5
 ```
 
 **bezier-react has [styled-components](https://styled-components.com/) as peer dependency** so don't forget to install it.