chore(deps): update dependency fluxcd/flux2 to v2.8.0

Author: renovate[bot]

components/flux/kustomization.yaml

@@ -2,7 +2,7 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   # Using installer manifests from Flux v2.3.0
-  - github.com/fluxcd/flux2/manifests/install?ref=v2.7.5
+  - github.com/fluxcd/flux2/manifests/install?ref=v2.8.0
 
 patches:
   - target: