chore(deps): update codeberg.org/forgejo/forgejo docker tag to v13.0.4 (#298)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [codeberg.org/forgejo/forgejo](https://forgejo.org) ([source](https://codeberg.org/forgejo/forgejo)) | patch | `13.0.3-rootless` → `13.0.4-rootless` |

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### Release Notes

<details>
<summary>forgejo/forgejo (codeberg.org/forgejo/forgejo)</summary>

### [`v13.0.4`](https://codeberg.org/forgejo/forgejo/releases/tag/v13.0.4)

[Compare Source](https://codeberg.org/forgejo/forgejo/compare/v13.0.3...v13.0.4)

See <https://codeberg.org/forgejo/forgejo/src/branch/forgejo/release-notes-published/13.0.4.md>

</details>

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Author: Renovate Bot

cluster/forgejo/deployments/forgejo.yaml

@@ -24,7 +24,7 @@ spec:
                 name: forgejo-env
             - secretRef:
                 name: forgejo-env
-          image: codeberg.org/forgejo/forgejo:13.0.3-rootless@sha256:d47936012f3bd7beca375af625d8c65580f9b781fde63893579a258d5c18f966
+          image: codeberg.org/forgejo/forgejo:13.0.4-rootless@sha256:5ebd7bb1f81fd9948e63d810ebd40830a00f8ca29165ca227105b3f5e4ec40bd
           name: forgejo
           ports:
             - containerPort: 3000