chore: add renovate bot config

renovate.json

@@ -0,0 +1,20 @@
+{
+    "platform": "forgejo",
+    "endpoint": "https://git.rustybever.be",
+    "repositories": [
+        "Chewing_Bever/homelab"
+    ],
+    "enabledManagers": [
+        "custom.regex"
+    ],
+    "customManagers": [
+    {
+      "customType": "regex",
+      "managerFilePatterns": ["/plays/.*\\.yml$/"],
+      "matchStrings": [
+        "#\\s*renovate:\\s*(datasource=(?<datasource>.*?) )?depName=(?<depName>.*?)( versioning=(?<versioning>.*?))?\\s*\\w*:\\s*\"?(?<currentValue>[^\"]*)\"?\\s"
+      ],
+      "versioningTemplate": "{{#if versioning}}{{{versioning}}}{{else}}semver{{/if}}"
+    }
+  ]
+}