Configure Renovate

- Add `renovate.json`.
- "Disable" dependabot, but leave the configuration file in place to show to automated tools that automated dependency updates are used in case they do not recognise Renovate.

Author: martincostello

.github/dependabot.yml

@@ -1,43 +1,7 @@
 version: 2
 updates:
-- package-ecosystem: "github-actions"
-  directory: "/"
-  schedule:
-    day: friday
-    interval: weekly
-    time: "05:30"
-    timezone: Europe/London
 - package-ecosystem: nuget
   directory: "/"
-  groups:
-    Microsoft.OpenApi:
-      patterns:
-        - Microsoft.OpenApi*
-    Swashbuckle.AspNetCore:
-      patterns:
-        - Swashbuckle.AspNetCore*
-    xunit:
-      patterns:
-        - Verify.Xunit*
-        - xunit*
-  schedule:
-    day: friday
-    interval: weekly
-    time: "05:30"
-    timezone: Europe/London
-  open-pull-requests-limit: 99
-- package-ecosystem: npm
-  directory: "/src/TodoApp"
-  groups:
-    babel:
-      patterns:
-        - "@babel/*"
-    typescript-eslint:
-      patterns:
-        - "@typescript-eslint/*"
   schedule:
-    day: friday
-    interval: weekly
-    time: "05:30"
+    interval: yearly
     timezone: Europe/London
-  open-pull-requests-limit: 99

renovate.json renamed to .github/renovate.json

@@ -1,6 +1,3 @@
 {
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:recommended"
-  ]
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json"
 }