fix(renovate): add release branches to renovate (runatlantis#3924)

* fix(renovate): This fixes renovate to also autoMerge fixes to our release branches so we don't have to cherry-pick them.

* fix(renovate): run config validator on release branches too

.github/renovate.json5

@@ -6,6 +6,7 @@
   commitMessageSuffix: " in {{packageFile}}",
   dependencyDashboardAutoclose: true,
   automerge: true,
+  baseBranches: ["main", "/^release\-.*/"],
   platformAutomerge: true,
   labels: ["dependencies"],
   postUpdateOptions: [

.github/workflows/renovate-config.yml

@@ -6,14 +6,15 @@ on:
       - '.github/renovate.json5'
     branches:
       - main
+      - 'releases-**'
   pull_request:
     paths:
       - '.github/renovate.json5'
   workflow_dispatch:
 
 jobs:
   validate:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4