Add dependabot.yml

Author: chtzvt

.github/dependabot.yml

@@ -0,0 +1,22 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: bundler
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+      time: 10:00
+    target-branch: development
+    groups:
+      development-dependencies:
+        dependency-type: development
+        exclude-patterns:
+          - erb_lint*
+      erb_lint:
+        patterns:
+          - erb_lint*