chore(deps): update dependency aqua:grafana/gcx to v1 (#2349)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [aqua:grafana/gcx](https://redirect.github.com/grafana/gcx) | major |
`0.6.0` → `1.0.0` |

---

### Release Notes

<details>
<summary>grafana/gcx (aqua:grafana/gcx)</summary>

###
[`v1.0.0`](https://redirect.github.com/grafana/gcx/blob/HEAD/CHANGELOG.md#v100-2026-07-28)

[Compare
Source](https://redirect.github.com/grafana/gcx/compare/v0.6.0...v1.0.0)

##### Features

- alert: add ruler subtree for datasource-managed rule writes
- kg: add `entities correlate` to resolve entities from alert labels
- kg: add entity quality reports (`kg quality`), folded into `kg
diagnose`

##### Fixes

- alert: make GMA alert rules modifiable via the resources tier
- cloud: drop status/createdAt/updatedAt from stack regions output
- aio11y: point plugin id at renamed grafana-agento11y-app

##### Docs

- GA: remove public preview warnings, add GA notes across docs and
README
- skills: harden agento11y-instrument and agento11y-prod-setup guidance
- stop prescribing Editor/Admin for service-account tokens; installation
fixes

</details>

---

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mise.lock

@@ -1,5 +1,5 @@
 [tools]
-"aqua:grafana/gcx" = "v0.6.0"
+"aqua:grafana/gcx" = "v1.0.0"
 "aqua:grafana/oats" = "0.8.0"
 hugo = "0.164.0"
 java = "temurin-25.0.3+9.0.LTS"