Revert "Revert "feat(platform): install Renovate Bot""

This reverts commit 70c1b3f385.

platform/renovate/Chart.yaml

@@ -0,0 +1,7 @@
+apiVersion: v2
+name: renovate
+version: 0.0.0
+dependencies:
+  - name: renovate
+    version: 31.45.0
+    repository: https://docs.renovatebot.com/helm-charts

platform/renovate/values.yaml

@@ -0,0 +1,17 @@
+renovate:
+  cronjob:
+    # schedule: '0 9 1 * *'  # At 09:00 every month
+    schedule: '*/10 * * * *'  # TODO remove after testing
+    suspend: false
+  renovate:
+    # TODO generate token automatically
+    config: |
+      {
+        "platform": "gitea",
+        "endpoint": "http://gitea-http.gitea:3000/api/v1",
+        "token": "TODO-gitea-renovate-token",
+        "autodiscover": "false",
+        "repositories": [
+          "ops/homelab"
+        ]
+      }