chore(deps): update oven-sh/setup-bun action to v1.2.1 (#539)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [oven-sh/setup-bun](https://togithub.com/oven-sh/setup-bun) | action |
patch | `v1.2.0` -> `v1.2.1` |

---

### Release Notes

<details>
<summary>oven-sh/setup-bun (oven-sh/setup-bun)</summary>

###
[`v1.2.1`](https://togithub.com/oven-sh/setup-bun/releases/tag/v1.2.1)

[Compare
Source](https://togithub.com/oven-sh/setup-bun/compare/v1.2.0...v1.2.1)

##### setup-bun `v1.2.1`

Download, install, and setup [Bun](https://bun.sh) in GitHub Actions.

##### Usage

```yaml
- uses: oven-sh/setup-bun@v1
  with:
    bun-version: latest
```

##### Using a custom NPM registry

```yaml
- uses: oven-sh/setup-bun@v1
  with:
    registry-url: "https://npm.pkg.github.com/"
    scope: "@&#8203;foo"
```

If you need to authenticate with a private registry, you can set the
`BUN_AUTH_TOKEN` environment variable.

```yaml
- name: Install Dependencies
  env:
    BUN_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
  run: bun install --frozen-lockfile
```

##### Node.js not needed

In most cases, you shouldn't need to use the
[setup-node](https://togithub.com/actions/setup-node) GitHub Action.

##### Inputs

| Name | Description | Default | Examples |
| -------------- | -------------------------------------------------- |
----------- | ------------------------------- |
| `bun-version` | The version of Bun to download and install. | `latest`
| `canary`, `1.0.0`, `1.0.x` |
| `registry-url` | Registry URL where some private package is stored. |
`undefined` | `"https://npm.pkg.github.com/"` |
| `scope` | Scope for private packages. | `undefined` | `"@&#8203;foo"`,
`"@&#8203;orgname"` |
| `no-cache` | Disable caching of the downloaded executable. | `false` |
`true`, `false` |

##### Outputs

| Name | Description | Example |
| -------------- | ------------------------------------------ |
---------------- |
| `cache-hit` | If the Bun executable was read from cache. | `true` |
| `bun-version` | The output from `bun --version`. | `1.0.0` |
| `bun-revision` | The output from `bun --revision`. | `1.0.0+822a00c4`
|

##### What's Changed

- build: bump ci actions by
[@&#8203;xHyroM](https://togithub.com/xHyroM) in
[oven-sh/setup-bun#66
- feat: support .tool-versions by
[@&#8203;xHyroM](https://togithub.com/xHyroM) in
[oven-sh/setup-bun#68
- fix: retry installing three times, add windows for testing by
[@&#8203;xHyroM](https://togithub.com/xHyroM) in
[oven-sh/setup-bun#72
- fix: close immediately by
[@&#8203;xHyroM](https://togithub.com/xHyroM) in
[oven-sh/setup-bun#75

**Full Changelog**:
oven-sh/setup-bun@v1.2.0...v1.2.1

</details>

---

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---

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---

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.github/workflows/build-email-function.yml

@@ -10,7 +10,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4.1.1
 
-      - uses: oven-sh/setup-bun@v1.2.0
+      - uses: oven-sh/setup-bun@v1.2.1
         with:
           bun-version: 1.0.29