fix(deps): update dependency backbone to v1.6.1 (#481)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [backbone](https://redirect.github.com/jashkenas/backbone) | [`1.6.0`
-> `1.6.1`](https://renovatebot.com/diffs/npm/backbone/1.6.0/1.6.1) |
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|
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|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/backbone/1.6.0/1.6.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|

---

### Release Notes

<details>
<summary>jashkenas/backbone (backbone)</summary>

###
[`v1.6.1`](https://redirect.github.com/jashkenas/backbone/compare/1.6.0...1.6.1)

[Compare
Source](https://redirect.github.com/jashkenas/backbone/compare/1.6.0...1.6.1)

</details>

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package-lock.json

@@ -18,7 +18,7 @@
     "lint": "eslint ."
   },
   "dependencies": {
-    "backbone": "1.6.0",
+    "backbone": "1.6.1",
     "backbone.paginator": "2.0.8",
     "gulp-shell": "0.8.0",
     "jquery": "~3.7.0",