Migrate renovate config (#132)

Migrate config .github/renovate.json

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

Author: renovate[bot]

.github/renovate.json

@@ -1,7 +1,9 @@
 {
-  "baseBranches": ["main"],
-    "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-    "extends": [
-        "github>rainbowdashlabs/rainbowdashlabs"
-    ]
+  "baseBranchPatterns": [
+    "main"
+  ],
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "github>rainbowdashlabs/rainbowdashlabs"
+  ]
 }