fix(deps): update dependency @netlify/serverless-functions-api to v1.22.0 (#519)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[@netlify/serverless-functions-api](https://github.com/netlify/serverless-functions-api)
| [`1.21.0` ->
`1.22.0`](https://renovatebot.com/diffs/npm/@netlify%2fserverless-functions-api/1.21.0/1.22.0)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@netlify%2fserverless-functions-api/1.22.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@netlify%2fserverless-functions-api/1.22.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@netlify%2fserverless-functions-api/1.21.0/1.22.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@netlify%2fserverless-functions-api/1.21.0/1.22.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

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

###
[`v1.22.0`](https://github.com/netlify/serverless-functions-api/compare/6908e6589cbaa13967170de22c5e3595be112ab5...492e25d431cf65dba433ec0196e92fcb2ef4a690)

[Compare
Source](https://github.com/netlify/serverless-functions-api/compare/6908e6589cbaa13967170de22c5e3595be112ab5...492e25d431cf65dba433ec0196e92fcb2ef4a690)

</details>

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package-lock.json

@@ -79,7 +79,7 @@
     "test": "test"
   },
   "dependencies": {
-    "@netlify/serverless-functions-api": "1.21.0"
+    "@netlify/serverless-functions-api": "1.22.0"
   },
   "devDependencies": {
     "@arethetypeswrong/cli": "^0.15.0",