fix(deps): update dependency @splitsoftware/splitio to v10.28.0 (#373)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[@splitsoftware/splitio](https://redirect.github.com/splitio/javascript-client)
| [`10.27.0` ->
`10.28.0`](https://renovatebot.com/diffs/npm/@splitsoftware%2fsplitio/10.27.0/10.28.0)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@splitsoftware%2fsplitio/10.28.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@splitsoftware%2fsplitio/10.28.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@splitsoftware%2fsplitio/10.27.0/10.28.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@splitsoftware%2fsplitio/10.27.0/10.28.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>splitio/javascript-client
(@&#8203;splitsoftware/splitio)</summary>

###
[`v10.28.0`](https://redirect.github.com/splitio/javascript-client/compare/10.27.0...10.28.0)

[Compare
Source](https://redirect.github.com/splitio/javascript-client/compare/10.27.0...10.28.0)

</details>

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