fix(deps): update dependency @netlify/serverless-functions-api to v1.7.3 (#420)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[@netlify/serverless-functions-api](https://togithub.com/netlify/serverless-functions-api)
| [`1.7.2` ->
`1.7.3`](https://renovatebot.com/diffs/npm/@netlify%2fserverless-functions-api/1.7.2/1.7.3)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@netlify%2fserverless-functions-api/1.7.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@netlify%2fserverless-functions-api/1.7.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|
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|

---

### Release Notes

<details>
<summary>netlify/serverless-functions-api
(@&#8203;netlify/serverless-functions-api)</summary>

###
[`v1.7.3`](https://togithub.com/netlify/serverless-functions-api/blob/HEAD/CHANGELOG.md#173-2023-08-23)

[Compare
Source](https://togithub.com/netlify/serverless-functions-api/compare/v1.7.2...v1.7.3)

##### Bug Fixes

- ensure the module is importable in Node 14
([#&#8203;144](https://togithub.com/netlify/serverless-functions-api/issues/144))
([e4f7c13](https://togithub.com/netlify/serverless-functions-api/commit/e4f7c130d83e1a497137093c5d770d846dbfe438))

</details>

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package-lock.json

@@ -52,7 +52,7 @@
     "test": "test"
   },
   "dependencies": {
-    "@netlify/serverless-functions-api": "1.7.2",
+    "@netlify/serverless-functions-api": "1.7.3",
     "is-promise": "^4.0.0"
   },
   "devDependencies": {