chore: move renovate config to an working location and configure it for helm and automatic version bumping

.forgejo/renovate.json

@@ -1,29 +0,0 @@
-{
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:base",
-    "config:recommended"
-  ],
-  "regexManagers": [
-    {
-      "datasourceTemplate": "docker",
-      "fileMatch": [
-        "(^|/)Chart\\.yaml$"
-      ],
-      "matchStrings": [
-        "#\\s*renovate: image=(?<depName>.*?)\\s+appVersion:\\s*[\"']?(?<currentValue>[\\w+\\.\\-]*)"
-      ]
-    },
-    {
-      "fileMatch": [
-        "(^|/)mautrix-synapse/Chart\\.yaml$"
-      ],
-      "matchStrings": [
-        "appVersion:\\s+\"(?<currentValue>v[a-z0-9.-]+)\""
-      ],
-      "depNameTemplate": "dock.mau.dev/mautrix/signal",
-      "datasourceTemplate": "docker",
-      "versioningTemplate": "docker"
-    }
-  ]
-}

renovate.json5

@@ -0,0 +1,47 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base",
+    "config:recommended"
+  ],
+  "regexManagers": [
+    {
+      // Match and update Docker image and appVersion in Chart.yaml
+      "datasourceTemplate": "docker",
+      "fileMatch": [
+        "(^|/)Chart\\.yaml$"
+      ],
+      "matchStrings": [
+        "#\\s*renovate: image=(?<depName>.*?)\\s+appVersion:\\s*[\"']?(?<currentValue>[\\w+\\.\\-]*)"
+      ]
+    },
+    {
+      // Match and bump chart version when appVersion changes
+      "fileMatch": [
+        "(^|/)Chart\\.yaml$"
+      ],
+      "matchStrings": [
+        "appVersion:\\s*[\"']?(?<currentValue>[\\w+\\.\\-]*)",
+        "version:\\s*[\"']?(?<currentVersion>[\\w+\\.\\-]*)"
+      ],
+      "datasourceTemplate": "regex",
+      "depNameTemplate": "chart-version-update",
+      "versioningTemplate": "semver",
+      "updateStrategy": "bump"
+    }
+  ],
+  "packageRules": [
+    {
+      // Group chart version and appVersion updates together
+      "matchPackageNames": ["chart-version-update"],
+      "groupName": "Chart and AppVersion Updates",
+      "bumpVersion": true
+    }
+  ],
+  "helmv3": {
+    "enabled": true
+  },
+  "rangeStrategy": "bump",
+  "timezone": "UTC",
+  "schedule": ["before 5am on Monday"]
+}