feat(container): update image flux-operator ( 0.12.0 → 0.13.0 ) (#4957)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [flux-operator](https://redirect.github.com/controlplaneio-fluxcd)
([source](https://redirect.github.com/controlplaneio-fluxcd/flux-operator))
| minor | `0.12.0` -> `0.13.0` |

---

### Release Notes

<details>
<summary>controlplaneio-fluxcd/flux-operator (flux-operator)</summary>

###
[`v0.13.0`](https://redirect.github.com/controlplaneio-fluxcd/flux-operator/releases/tag/v0.13.0)

[Compare
Source](https://redirect.github.com/controlplaneio-fluxcd/flux-operator/compare/v0.12.0...v0.13.0)

##### What's Changed

- Enable alerting for `FluxInstance` events by
[@&#8203;stefanprodan](https://redirect.github.com/stefanprodan) in
[https://github.com/controlplaneio-fluxcd/flux-operator/pull/131](https://redirect.github.com/controlplaneio-fluxcd/flux-operator/pull/131)
- Update dependencies by
[@&#8203;stefanprodan](https://redirect.github.com/stefanprodan) in
[https://github.com/controlplaneio-fluxcd/flux-operator/pull/134](https://redirect.github.com/controlplaneio-fluxcd/flux-operator/pull/134)
- docs: Fix monitoring link by
[@&#8203;jacobw](https://redirect.github.com/jacobw) in
[https://github.com/controlplaneio-fluxcd/flux-operator/pull/136](https://redirect.github.com/controlplaneio-fluxcd/flux-operator/pull/136)
- Release v0.13.0 by
[@&#8203;stefanprodan](https://redirect.github.com/stefanprodan) in
[https://github.com/controlplaneio-fluxcd/flux-operator/pull/138](https://redirect.github.com/controlplaneio-fluxcd/flux-operator/pull/138)

##### New Contributors

- [@&#8203;jacobw](https://redirect.github.com/jacobw) made their first
contribution in
[https://github.com/controlplaneio-fluxcd/flux-operator/pull/136](https://redirect.github.com/controlplaneio-fluxcd/flux-operator/pull/136)

**Full Changelog**:
controlplaneio-fluxcd/flux-operator@v0.12.0...v0.13.0

</details>

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Co-authored-by: repo-jeeves[bot] <106431701+repo-jeeves[bot]@users.noreply.github.com>

kubernetes/staging/apps/flux-system/flux-operator/app/helm-release.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: flux-operator
-      version: 0.12.0
+      version: 0.13.0
       sourceRef:
         kind: HelmRepository
         name: controlplaneio-charts

kubernetes/staging/bootstrap/helmfile.yaml

@@ -59,7 +59,7 @@ releases:
   - name: flux-operator
     namespace: flux-system
     chart: oci://ghcr.io/controlplaneio-fluxcd/charts/flux-operator
-    version: 0.12.0
+    version: 0.13.0
     values:
       - ../apps/flux-system/flux-operator/app/helm-values.yaml
     needs: