feat!: Remove core and crds fluxtomizations and use raw helm chart to install CRs

Signed-off-by: Devin Buhl <devin@buhl.casa>

cluster/apps/system-upgrade/kured/helm-release.yaml

@@ -0,0 +1,32 @@
+---
+apiVersion: helm.toolkit.fluxcd.io/v2beta1
+kind: HelmRelease
+metadata:
+  name: kured
+  namespace: system-upgrade
+spec:
+  interval: 15m
+  chart:
+    spec:
+      chart: kured
+      version: 4.0.2
+      sourceRef:
+        kind: HelmRepository
+        name: kubereboot
+        namespace: flux-system
+      interval: 15m
+  install:
+    createNamespace: true
+    remediation:
+      retries: 5
+  upgrade:
+    remediation:
+      retries: 5
+  values:
+    configuration:
+      startTime: "10pm"
+      endTime: "2am"
+      logFormat: "json"
+      timeZone: "${TIMEZONE}"
+      rebootSentinelCommand: |-
+        sh -c "! needs-restarting --reboothint"

cluster/apps/system-upgrade/kured/kustomization.yaml

@@ -0,0 +1,5 @@
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - helm-release.yaml