fix(deps): update website (#5202)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[google-cloud-ndb](https://redirect.github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-ndb)
([source](https://redirect.github.com/googleapis/google-cloud-python)) |
`==2.4.1` → `==2.4.2` |
![age](https://developer.mend.io/api/mc/badges/age/pypi/google-cloud-ndb/2.4.2?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/google-cloud-ndb/2.4.1/2.4.2?slim=true)
|
| [werkzeug](https://redirect.github.com/pallets/werkzeug)
([changelog](https://werkzeug.palletsprojects.com/page/changes/)) |
`==3.1.7` → `==3.1.8` |
![age](https://developer.mend.io/api/mc/badges/age/pypi/werkzeug/3.1.8?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/werkzeug/3.1.7/3.1.8?slim=true)
|

---

### Release Notes

<details>
<summary>googleapis/google-cloud-python (google-cloud-ndb)</summary>

###
[`v2.4.2`](https://redirect.github.com/googleapis/google-cloud-python/releases/tag/google-cloud-ndb-v2.4.2):
google-cloud-ndb: v2.4.2

[Compare
Source](https://redirect.github.com/googleapis/google-cloud-python/compare/google-cloud-ndb-v2.4.1...google-cloud-ndb-v2.4.2)

##### Bug Fixes

- allow redis 7.x
([#&#8203;16533](https://redirect.github.com/googleapis/google-cloud-python/issues/16533))
([4c541cf2](https://redirect.github.com/googleapis/google-cloud-python/commit/4c541cf2))

</details>

<details>
<summary>pallets/werkzeug (werkzeug)</summary>

###
[`v3.1.8`](https://redirect.github.com/pallets/werkzeug/blob/HEAD/CHANGES.rst#Version-318)

[Compare
Source](https://redirect.github.com/pallets/werkzeug/compare/3.1.7...3.1.8)

Released 2026-04-02

- `Request.host` and `get_host` return the empty string if the header is
  missing or has invalid characters. :issue:`3142`

</details>

---

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---

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Author: renovate-bot

gcp/website/poetry.lock

@@ -5,9 +5,9 @@ dependencies = [
     "Flask==3.1.3",
     "Flask-Caching==2.3.1",
     "Flask-Compress==1.24",
-    "werkzeug==3.1.7",
+    "werkzeug==3.1.8",
     "google-auth==2.49.1",
-    "google-cloud-ndb==2.4.1",
+    "google-cloud-ndb==2.4.2",
     "google-cloud-logging==3.15.0",
     "google-cloud-storage==3.10.1",
     "jinja2==3.1.6",