Run on stable branches

Change-Id: Iadcee69f283c14b967ff57b5356375a33ec4690d
diff --git a/renovate.json b/renovate.json
index f5000a9..5b45976 100644
--- a/renovate.json
+++ b/renovate.json
@@ -1,6 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": ["config:base"],
+  "baseBranches": ["main", "/^stable\\/.*/"],
   "packageRules": [
     {
       "matchPackagePatterns": ["*"],