project: disable Depfu for Renovate since PR creation fails

.github/renovate.json5

@@ -15,11 +15,6 @@
   commitMessageTopic: "{{depName}}",
   commitMessageExtra: "to {{#if isSingleVersion}}v{{{newVersion}}}{{else}}{{{newValue}}}{{/if}}",
   packageRules: [
-    // Ruby dependencies are managed by depfu
-    {
-      matchManagers: ["bundler"],
-      enabled: false,
-    },
     // Commit message formats
     {
       matchDatasources: ["docker"],

README.md

@@ -1,6 +1,6 @@
 # dyndnsd.rb
 
-![ci](https://github.com/cmur2/dyndnsd/workflows/ci/badge.svg) [![Dependencies](https://badges.depfu.com/badges/4f25da8493f7a29f652ac892fbf9227b/overview.svg)](https://depfu.com/github/cmur2/dyndnsd)
+![ci](https://github.com/cmur2/dyndnsd/workflows/ci/badge.svg)
 
 A small, lightweight and extensible DynDNS server written with Ruby and Rack.