feat: add private helm repo support (#6)

Adding support for our private helm repository enabling updates of private resources.

Reviewed-on: #6
Reviewed-by: branch-buddy <branch-buddy@t00n.de>
Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

helm.json

@@ -13,5 +13,13 @@
   "helmfile": {
     "enabled": true,
     "addLabels": ["deps", "helm"]
+  },
+  "hostRules": [
+    {
+      "matchHost": "gitea.t000-n.de",
+      "hostType": "helm",
+      "username": "{{ secrets.HELM_REGISTRY_USER }}",
+      "password": "{{ secrets.HELM_REGISTRY_PASSWORD }}"
     }
+  ]
 }

k8s.json

@@ -2,7 +2,7 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "kubernetes": {
     "enabled": true,
-    "fileMatch": ["^k8s/*\\.json$"],
+    "fileMatch": ["^k8s/*\\.yaml$"],
     "labels": ["deps", "k8s"]
   }
 }