Update dependency dotenv-expand to v8.0.3 (#79)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [dotenv-expand](https://togithub.com/motdotla/dotenv-expand) | [`8.0.1` -> `8.0.3`](https://renovatebot.com/diffs/npm/dotenv-expand/8.0.1/8.0.3) | [![age](https://developer.mend.io/api/mc/badges/age/npm/dotenv-expand/8.0.3?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/dotenv-expand/8.0.3?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/dotenv-expand/8.0.1/8.0.3?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/dotenv-expand/8.0.1/8.0.3?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>motdotla/dotenv-expand (dotenv-expand)</summary>

### [`v8.0.3`](https://togithub.com/motdotla/dotenv-expand/blob/HEAD/CHANGELOG.md#803-2022-03-21)

[Compare Source](https://togithub.com/motdotla/dotenv-expand/compare/v8.0.2...v8.0.3)

##### Changed

-   🐞 Fixed defaults bug ([#&#8203;71](https://togithub.com/motdotla/dotenv-expand/pull/71))

### [`v8.0.2`](https://togithub.com/motdotla/dotenv-expand/blob/HEAD/CHANGELOG.md#802-2022-03-11)

[Compare Source](https://togithub.com/motdotla/dotenv-expand/compare/v8.0.1...v8.0.2)

##### Changed

-   🐞 Fixed preloading bug

</details>

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packages/next-env/package.json

@@ -31,6 +31,6 @@
   "devDependencies": {
     "@vercel/ncc": "0.34.0",
     "dotenv": "10.0.0",
-    "dotenv-expand": "8.0.1"
+    "dotenv-expand": "8.0.3"
   }
 }