update renovate config [no ci]

Author: lawndoc

.github/renovate.json

@@ -0,0 +1,12 @@
+{
+    "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+    "extends": [
+      "config:recommended",
+      ":approveMajorUpdates",
+      ":configMigration",
+      ":docker",
+      ":prHourlyLimitNone",
+      ":timezone(America/Chicago)",
+      "helpers:pinGitHubActionDigests"
+    ]
+  }

.github/workflows/tag-updates.yml

@@ -6,7 +6,7 @@ on:
       - main
     paths-ignore:
       - .gitignore
-      - renovate.json
+      - .github/renovate.json
       - README.MD
       - LICENSE
       - docs/