chore: upgrade dgraph and dgo

[matthewmcneely]

Description

This PR upgrades Dgraph and dgo to official v25 releases

---

Summary by cubic

Upgraded to official Dgraph v25.0.0 and dgo v250.0.0 to replace preview builds and improve stability and compatibility. Updated go.mod/go.sum and the changelog; refreshed dependent libraries to match v25.

• Dependencies

  • Dgraph v25.0.0 and dgo v250.0.0; other compatible bumps (e.g., badger v4.8.0, ristretto v2.3.0, gRPC 1.75.1, OpenTelemetry 1.38.0).

• Migration

  • Ensure your Dgraph cluster is running v25 before adopting.

[cubic-dev-ai]

1 issue found across 3 files

Prompt for AI agents (all 1 issues)

Understand the root cause of the following 1 issues and fix them.


<file name="go.mod">

<violation number="1" location="go.mod:48">
The module path go.yaml.in/yaml/v3 is invalid; it should remain gopkg.in/yaml.v3 or the go toolchain will refuse to download it.</violation>
</file>

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