feat(grafana): update image ghcr.io/kiwigrid/k8s-sidecar 2.7.4 → 2.8.0 (#49415)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[ghcr.io/kiwigrid/k8s-sidecar](https://redirect.github.com/kiwigrid/k8s-sidecar)
| minor | `b6b8781` → `8fd1da8` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/18710) for more information.

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

---

### Release Notes

<details>
<summary>kiwigrid/k8s-sidecar (ghcr.io/kiwigrid/k8s-sidecar)</summary>

###
[`v2.8.0`](https://redirect.github.com/kiwigrid/k8s-sidecar/releases/tag/2.8.0)

[Compare
Source](https://redirect.github.com/kiwigrid/k8s-sidecar/compare/2.7.4...2.8.0)

#### 🚀 Features

- add support for ppc64le and riscv64
- PR:
[#&#8203;592](https://redirect.github.com/kiwigrid/k8s-sidecar/issues/592)

#### 📦 Dependencies

- build(deps): bump docker/setup-buildx-action from 4.0.0 to 4.1.0
- PR:
[#&#8203;590](https://redirect.github.com/kiwigrid/k8s-sidecar/issues/590)
- build(deps): bump actions/stale from 10.2.0 to 10.3.0
- PR:
[#&#8203;589](https://redirect.github.com/kiwigrid/k8s-sidecar/issues/589)
- build(deps): bump softprops/action-gh-release from 3.0.0 to 3.0.1
- PR:
[#&#8203;588](https://redirect.github.com/kiwigrid/k8s-sidecar/issues/588)
- build(deps): bump docker/bake-action from 7.1.0 to 7.2.0
- PR:
[#&#8203;591](https://redirect.github.com/kiwigrid/k8s-sidecar/issues/591)
- build(deps): bump actions/checkout from 6.0.2 to 7.0.0
- PR:
[#&#8203;587](https://redirect.github.com/kiwigrid/k8s-sidecar/issues/587)

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xMzAuMSIsInVwZGF0ZWRJblZlciI6IjQzLjEzMC4xIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImFwcC9ncmFmYW5hIiwiYXV0b21lcmdlIiwicmVub3ZhdGUvY29udGFpbmVyIiwidHlwZS9taW5vciJdfQ==-->

charts/stable/grafana/values.yaml

@@ -6,7 +6,7 @@ image:
 
 sidecarImage:
   repository: ghcr.io/kiwigrid/k8s-sidecar
-  tag: 2.7.4@sha256:b6b8781bbdb0d853e54d24ca4b20be44b26b13cbaf3ed5c6962a4dfdcbed1cfa
+  tag: 2.8.0@sha256:8fd1da830a3eeaa53001381d1925086ed79c67cc18380a8fbac8da47f4d91fcc
 
 # Define extra dashboards to be provisioned
 # Supports 2 formats: