feat(checkmk): Add Helm repository configuration for Checkmk chart

Author: TheMeinerLP

infrastructure/clusters/feather-core/base-sources/checkmk.yml

@@ -0,0 +1,8 @@
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: checkmk-chart
+  namespace: flux-system
+spec:
+  interval: 5m
+  url: https://checkmk.github.io/checkmk_kube_agent

infrastructure/clusters/feather-core/base-sources/kustomization.yaml

@@ -12,4 +12,5 @@ resources:
   - jetstack.yml
   - bitnami.yml
   - spegel.yaml
-  - harbor.yml
+  - harbor.yml
+  - checkmk.yml