Add renovate.json (#167)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

renovate.json

@@ -0,0 +1,29 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended"
+  ],
+  "automerge": true,
+  "packageRules": [
+    {
+      "matchDatasources": ["pypi"],
+      "matchPackageNames": ["homeassistant"],
+      "enabled": false
+    },
+    {
+      "matchDatasources": ["pypi"],
+      "matchPaths": ["requirements.txt"],
+      "automerge": true
+    }
+  ],
+  "customManagers": [
+    {
+      "customType": "regex",
+      "fileMatch": ["^custom_components/.+/manifest\\.json$"],
+      "matchStrings": ["\"requirements\":\\s*\\[(\\s*\"(?<depName>[^\"]+)==(?<currentValue>(==|>=|<=)[0-9\\.]+)\"[,\\s]?)*\\]"],
+      "versioningTemplate": "semver",
+      "depNameTemplate": "{{depName}}",
+      "datasourceTemplate": "pypi"
+    }
+  ]
+}