chore(deps): update dependency posthog-js to v1.258.3 (#624)

This PR contains the following updates:

| Package | Type | Update | Change | OpenSSF |
|---|---|---|---|---|
| [posthog-js](https://posthog.com/docs/libraries/js)
([source](https://redirect.github.com/PostHog/posthog-js)) |
dependencies | patch | [`1.258.2` ->
`1.258.3`](https://renovatebot.com/diffs/npm/posthog-js/1.258.2/1.258.3)
| [![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/PostHog/posthog-js/badge)](https://securityscorecards.dev/viewer/?uri=github.com/PostHog/posthog-js)
|

---

### Release Notes

<details>
<summary>PostHog/posthog-js (posthog-js)</summary>

###
[`v1.258.3`](https://redirect.github.com/PostHog/posthog-js/releases/tag/posthog-js%401.258.3)

[Compare
Source](https://redirect.github.com/PostHog/posthog-js/compare/posthog-js@1.258.2...posthog-js@1.258.3)

#### 1.258.3

##### Patch Changes

-
[#&#8203;2171](https://redirect.github.com/PostHog/posthog-js/pull/2171)
[`14adc01`](https://redirect.github.com/PostHog/posthog-js/commit/14adc01875c87f6be10e70204307003d9d0f941c)
Thanks
[@&#8203;lucasheriques](https://redirect.github.com/lucasheriques)! -
Fix early access features accumulation in persistence

-
[#&#8203;2170](https://redirect.github.com/PostHog/posthog-js/pull/2170)
[`262cc5c`](https://redirect.github.com/PostHog/posthog-js/commit/262cc5cc9364605e31788e5370b0663507e4c832)
Thanks
[@&#8203;lucasheriques](https://redirect.github.com/lucasheriques)! -
Removes the `_renderExternalSurvey` method which is not needed anymore

</details>

---

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bun.lock

@@ -39,7 +39,7 @@
     "gray-matter": "4.0.3",
     "lucide-react": "0.532.0",
     "next": "15.4.4",
-    "posthog-js": "1.258.2",
+    "posthog-js": "1.258.3",
     "posthog-node": "5.6.0",
     "prettier": "3.6.2",
     "react": "19.1.1",