chore(deps): update dependency go to v1.26.0 (#14)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [go](https://github.com/actions/go-versions) | uses-with | minor | `1.25.6` → `1.26.0` |

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### Release Notes

<details>
<summary>actions/go-versions (go)</summary>

### [`v1.26.0`](https://github.com/actions/go-versions/releases/tag/1.26.0-21889650668): 1.26.0

[Compare Source](https://github.com/actions/go-versions/compare/1.25.7-21696103256...1.26.0-21889650668)

Go 1.26.0

### [`v1.25.7`](https://github.com/actions/go-versions/releases/tag/1.25.7-21696103256): 1.25.7

[Compare Source](https://github.com/actions/go-versions/compare/1.25.6-21053840953...1.25.7-21696103256)

Go 1.25.7

</details>

---

### Configuration

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---

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Reviewed-on: #14
Reviewed-by: t.behrendt <t.behrendt@noreply.localhost>
Co-authored-by: Renovate Bot <renovate@t00n.de>
Co-committed-by: Renovate Bot <renovate@t00n.de>

.gitea/workflows/weekly.yaml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@7a3fe6cf4cb3a834922a1244abfce67bcef6a0c5 # v6
         with:
-          go-version: "1.25.6"
+          go-version: "1.26.0"
       - name: Install yq
         run: |
           sudo wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/bin/yq